INTERLEAF INC /MA/
S-3, 1998-12-17
PREPACKAGED SOFTWARE
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<PAGE>

    As filed with the Securities and Exchange Commission on December 17, 1998
                                                           Registration No. 333-
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ----------------------
                                    FORM S-3
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933
                      -------------------------------------
                                 INTERLEAF, INC.
             (Exact name of Registrant as Specified in its Charter)

         Massachusetts                                     04-2729042
(State or Other Jurisdiction of                         (I.R.S. Employer
Incorporation or Organization)                       Identification Number)

                                62 Fourth Avenue
                          Waltham, Massachusetts 02451
                                 (781) 290-0710
    (Address, Including Zip Code, and Telephone Number, Including Area Code,
                  of Registrant's Principal Executive Offices)
                       -----------------------------------
                              Craig Newfield, Esq.
                                 Interleaf, Inc.
                                62 Fourth Avenue
                          Waltham, Massachusetts 02451
                                 (781) 290-0710
 (Name, Address, Including Zip Code, and Telephone Number, Including Area Code,
                              of Agent for Service)
                       ----------------------------------
                                   Copies to:
                              David Murphree, Esq.
                         Brown, Rudnick, Freed & Gesmer
                              One Financial Center
                           Boston, Massachusetts 02111
                               Tel: (617) 856-8200
                               Fax: (617) 856-8201

Approximate date of commencement of proposed sale to the public: From time to
time after the effective date of this Registration Statement.

If the only securities being registered on this form are being offered pursuant
to dividend or interest reinvestment plans, please check the following box./ /
If any of the securities being registered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under Securities Act of 1933,
please check the following box./X/ 
If this form is filed to register additional securities for an offering 
pursuant to Rule 462(b) under the Securities Act, please check the following 
box and list the Securities Act registration statement number of the earlier 
effective registration statement for the same offering./ / 
If this form is a post-effective amendment filed pursuant to Rule 462(c) 
under the Securities Act, check the following box and list the Securities Act 
registration statement number of the earlier effective registration statement 
for the same offering./ / 
If delivery of the prospectus is expected to be made pursuant to Rule 434, 
please check the following box./ /

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                         CALCULATION OF REGISTRATION FEE
<TABLE>
<CAPTION>
- ------------------------------------ ----------------- ----------------------- ------------------------ ------------------------
                                          Amount              Proposed                Proposed
      Title of Each Class Of              To Be           Maximum Offering        Maximum Aggregate     Amount Of Registration
    Securities To Be Registered         Registered       Price Per Share(1)      Offering Price (1)               Fee
- ------------------------------------ ----------------- ----------------------- ------------------------ ------------------------
<S>                                   <C>                    <C>                   <C>                         <C>
Common Stock, $.01 par value            4,561,250              $ .626                $2,853,062                  $793
- ------------------------------------ ----------------- ----------------------- ------------------------ ------------------------
- ------------------------------------ ----------------- ----------------------- ------------------------ ------------------------
</TABLE>

 (1) Estimated solely for purposes of calculating the Registration fee pursuant
     to Rule 457(c) under the Securities Act of 1933, as amended. Based on the
     average of the high and low price of the Common Stock as reported on the
     Nasdaq National Market on December 16, 1998.
                            ---------------------
     The Registrant hereby amends this Registration Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further amendment which specifically states that this Registration
Statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933, as amended, or until the Registration Statement
shall become effective on such date as the Commission, acting pursuant to said
Section 8(a), may determine.

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<PAGE>






      Preliminary Prospectus dated December __, 1998, Subject to Completion


                                 INTERLEAF, INC.


                        4,561,250 Shares of Common Stock


This Prospectus relates to the resale of up to 4,561,250 shares of the Common
Stock of Interleaf, Inc.. These shares are already outstanding and may be
offered for sale from time to time for the accounts of the Selling Stockholders.
See "Selling Stockholders." The Company will not receive any part of the
proceeds from the sale.

The Common Stock presently is traded on the Nasdaq National Market under the
symbol "LEAF". On December 16, 1998, the last reported sale price of the Common
Stock on the Nasdaq National Market was $ .656 per share.


An Investment in the Common Stock offered under this Prospectus involves a high
degree of risk. See "Risk Factors" beginning on page 4.


Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.



                     The date of this Prospectus is December __ , 1998.

The information contained in this Prospectus is not complete and may be changed.
The securities may not be sold until the related Registration Statement filed
with the Securities and Exchange Commission or any applicable state securities
commission is effective. This Prospectus is not an offer to sell these
securities and it is not soliciting an offer to buy these securities in any
state where the offer or sale is not permitted.


<PAGE>
    

                             ADDITIONAL INFORMATION


         The Company is subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and files
reports, proxy statements and other information with the Securities and Exchange
Commission (the "Commission"). Those reports, proxy statements and other
information filed by the Company can be inspected and copied at the public
reference facilities maintained by the Commission at Judiciary Plaza, 450 Fifth
Street, NW, Room 1024, Washington, D.C. 20549, and at the Commission's Regional
Offices at Citicorp Center, 500 West Madison Street, Suite 1400, Chicago,
Illinois 60661 and 7 World Trade Center, Suite 1300, New York, New York 10048,
at prescribed rates. Copies of such material can also be obtained at prescribed
rates from the Public Reference Section of the Commission, Judiciary Plaza, 450
Fifth Street, N.W., Washington, D.C. 20549. The Commission maintains a Web site
(http://www.sec.gov) that contains reports, proxy and information statements and
other information electronically filed through the Commission's Electronic Data
Gathering, Analysis and Retrieval ("EDGAR") system. The Company's Common Stock
is quoted on the Nasdaq National Market under the symbol "LEAF", and reports,
proxy statements and certain other information concerning the Company can also
be inspected at offices of Nasdaq Operations, 1735 K Street NW, Washington, D.C.
20006.


         The Company has filed with the Commission a Registration Statement on
Form S-3 (the "Registration Statement") under the Securities Act of 1933, as
amended (the "Securities Act"), with respect to the shares of Common Stock
offered in this Prospectus. This Prospectus, which constitutes a part of the
Registration Statement, does not contain all of the information set forth in the
Registration Statement and the exhibits and schedules thereto, to which
reference is hereby made. Statements contained in this Prospectus, and in any
document incorporated into this Prospectus by reference as to the contents of
any contract or any other document are not necessarily complete. In each
instance, you are referred to the copy of the full contract or other document
filed as an exhibit to the Registration Statement, each such statement being
qualified in all respects by such reference. The Registration Statement,
together with its exhibits and schedules, may be inspected without charge at the
Public Reference Section of the Commission in Washington, D.C. at the address
noted above, and copies of all or any part thereof may be obtained from the
Commission upon payment of the prescribed fees.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The following documents previously filed by the Company with the Commission
are incorporated herein by reference:

          (1) the Company's Annual Report on Form 10-K for the year ended March
31, 1998;
          (2) the Company's Quarterly Report on Form 10-Q and the amendments
     thereto for the fiscal quarters ended June 30, 1998 and September 30, 1998;
          (3) the Company's Current Reports on Form 8-K filed with the
     Commission on July 17, 1998, and on September 24, 1998, the amendment to
     the second filed with the Commission on November 12, 1998, and the Current
     Report on Form 8-K filed on November 27, 1998; and
          (4) the description of the Company's Common Stock contained in the
     Registration Statement on Form 8-A filed by the Company with the Commission
     on June 11, 1986, including all amendments or reports filed for the purpose
     of updating such description.

     All reports and other documents subsequently filed by the Company pursuant
to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this
Prospectus and prior to the termination of the offering shall be deemed to be
incorporated by reference in this Prospectus and shall be part of this
Prospectus from the date of the filing of such document. Any statement contained
into this Prospectus or in a document incorporated or deemed to be incorporated
by reference herein shall be deemed to be modified or superseded for purposes of
this Prospectus to the extent that a statement contained herein, or in any other
subsequently filed document that also is (or is deemed to be) incorporated by
reference herein, modifies or supersedes such statement. Any statement so
modified or superseded shall not be deemed, except as so modified or superseded,
to constitute a part of the Registration Statement or this Prospectus.

     The Company will provide without charge to each person, including any
beneficial owner, to whom this Prospectus is delivered, upon written or oral
request of such person, a copy of any of the reports or documents incorporated
by reference in this Prospectus (other than exhibits) unless such exhibits are
expressly incorporated by reference in such documents. Requests for such
documents should be submitted in writing to: General Counsel, Interleaf, Inc.,
62 Fourth Avenue, Waltham, Massachusetts 02451; telephone (617) 290-0710.


                                       2
<PAGE>




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                                     SUMMARY

This Summary highlights information that appears elsewhere in or is incorporated
by reference in this Prospectus. It is not complete and may not contain all of
the information that you should consider before investing in the Common Stock.
You should read the entire Prospectus carefully, including the "Risk Factors"
section and the consolidated financial statements and the notes to those
statements.

Some of the statements contained in this Prospectus under "Summary" and "Risk
Factors", and in the documents incorporated by reference, are forward-looking.
The words "expects," "anticipates," "estimates" and similar expressions are
intended to identify forward-looking statements. They include, but are not
limited to, statements related to (a) the Company's plans, objectives,
expectations and intentions, (b) the timing of, availability and functionality
of products under development or recently introduced, and (c) general economic
conditions. Actual results may differ materially from those suggested by the
forward-looking statements for various reasons, including those discussed under
"Risk Factors." These forward-looking statements speak only as of the date of
this Prospectus, or in the case of forward-looking statements in documents
incorporated by reference, as of the dates of those documents.

                                   The Company


Interleaf and it subsidiaries develop and market software products used in the
creation, publication, management and distribution of information and documents
in electronic and paper form. The Company's software products enable customers
to compose, edit, view, print, control, manage and distribute information and
documents on a cost-effective and efficient basis. The Company's core product
line includes electronic publishing, document management systems, intranet
publishing and content management software. The Company provides technical
support and maintenance to its customers utilizing its software products. In
addition, the Company provides consulting, custom application and implementation
services to its customers.

The Company's principal executive offices are located at 62 Fourth Avenue,
Waltham, Massachusetts 02451, and its telephone number is (781) 290-0710.


                            Description of Securities

Securities Offered:       4,561,250 shares of Common Stock.

Use of Proceeds:          The Company will not receive any of the proceeds of
                          this offering.

Plan of Distribution:     The shares of Common Stock covered by this Prospectus
                          may be offered from time to time by the Selling
                          Stockholders. See "Plan of Distribution."

Trading:                  The Common Stock presently is traded on the Nasdaq 
                          National Market under the symbol "LEAF."

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                                       3
<PAGE>


                                  RISK FACTORS

The Common Stock offered under this Prospectus involves a high degree of risk.
You should carefully consider the following risk factors in addition to the
other information in this Prospectus before deciding to purchase the Common
Stock.

Declining Revenue and Mature Product Market.

Since the Company was founded, it has focused primarily on the development and
marketing of electronic publishing software for the technical documentation
marketplace. The market for this type of software has matured and is largely
saturated. The Company's revenues have declined over the last several years as a
result of both the maturation and saturation of the market for these products
and the increased popularity of low cost versions of Windows-based authoring
software. Unless the Company successfully develops new products and exploits new
markets, revenues can be expected to continue to decline.

Dependence on New Products and New Markets.

The Company's strategy for future growth depends upon the successful
development, introduction and customer acceptance of new and improved products
and services. The Company has targeted enterprise content management as a new
market for its products and services. The market for enterprise content
management products and services is just beginning to emerge. New markets in the
software industry are characterized by evolving industry standards, rapid
technological change, and changing customer requirements, any of which can cause
delays in development or market acceptance of the Company's products. There is a
risk that the enterprise content management market may not grow, that the
Company may not be successful in developing enterprise content management
software, or that the marketplace may not accept the Company's software.

Uncertainty of Future Operating Results; Fluctuations in Quarterly Operating
Results.

Future operating results will depend upon many factors. These include, among
others, the following: the demand for the Company's existing products; the
ability of the Company to develop and market new products; market acceptance of
the Company's new products; the timing of new product and enhancement
introductions by the Company and its competitors; the level of product and price
competition; the budget cycles of the Company's customers; the length of the
Company's sales cycle; the size and timing of individual license transactions;
any delay of customer implementation of new software and services; the mix of
products and services sold; activities of competitors; changes in foreign
currency exchange rates; and general domestic and international economic and
political conditions.

The Company typically ships a substantial amount of its products in the final
weeks, or even the final days, of each quarter. In addition, it is difficult to
predict when the Company will receive license revenue because of the length of
the Company's sales cycle. The loss or delay of individual orders could have a
significant impact on the quarterly revenues of the Company. Because a high
percentage of the Company's expenses are relatively fixed, any shortfall or
delay in the recognition of revenue from even a limited number of license
transactions could cause significant variations in operating results from
quarter to quarter. For these reasons, the Company believes that
period-to-period comparisons of its results of operations are not necessarily
meaningful and that investors should not rely on them as indications of future
performance. However, these factors do increase the risk that the Company's
results in some quarters will be below the expectations of stock analysts or
investors. Such an "earnings surprise" frequently will result in a drop in the
market price of a company's stock.


                                       4
<PAGE>


Intense Competition.

The market for the Company's existing technical documentation products is very
competitive, subject to rapid change and significantly affected by activities of
other industry participants. Several competitors in that market have greater
market penetration, greater name recognition, a larger installed base of
customers and significantly greater financial, technical and marketing resources
than the Company. While the Company does not yet know who its principal
competitors in the emerging and highly fragmented enterprise content management
market will be, it is likely that the content management market will develop
characteristics similar to those described above.

Reliance on Certain Relationships.

The Company seeks to establish strategic relationships with companies that have
outsourcing or service bureau businesses, as well as with companies that have a
presence and publishing expertise in the financial services market. The Company
has relationships with various technology providers and development partners,
which are critical to the Company's ability to develop and release content
management products in a timely, high quality fashion, and important to its
entrance into the enterprise content management market. All of these
relationships are important to the Company's worldwide development, sales,
marketing and support activities. The Company's failure to maintain these
existing relationships and establish new relationships, or the failure of the
other parties to perform their obligations to the Company, could have a material
adverse effect on the Company's business, financial condition and results of
operations.

Dependence Upon Key Personnel.

The Company's ability to compete effectively will require the Company to train
and manage its employee work force effectively. Competition for qualified
personnel in the software industry is very intense, and the Company may be
unable to attract, assimilate or retain key employees.

Dependence on Proprietary Technology; Risks of Infringement.

The Company's success is heavily dependent upon proprietary technology. The
Company relies on a combination of copyrights, trademarks, patents, trade
secrets and technical measures to protect its intellectual property. The Company
seeks to protect its software, documentation and other written materials
primarily under trade secret and copyright laws, which afford only limited
protection. The laws of some foreign countries do not provide the level of
protection to the Company's proprietary rights as do the laws of the United
States. Policing unauthorized use of the Company's products is difficult. While
the Company cannot determine the extent to which piracy of its software products
exists, some software piracy can be expected. There is the risk that the
Company's attempts to protect its rights will not be adequate and that
competitors may independently develop similar technology.

The Company is not aware that any of its products infringe the proprietary
rights of third parties. However, in the future, third parties may claim that
the Company's current or future products infringe on their proprietary rights.
Claims of this type could be very time-consuming, result in costly litigation,
cause product shipment delays or require the Company to enter into costly
royalty or licensing agreements.

Possibility of Delisting from Nasdaq National Market.

On November 13, 1998, the Nasdaq Stock Market, Inc. advised the Company that it
is not in compliance with the maintenance requirements for continued listing on
the Nasdaq National Market, and that the failure to maintain a closing bid price
greater than or equal to $1.00 per share on an ongoing basis will result in the
delisting of the Company's Common Stock. In order to avoid delisting from the
Nasdaq National Market, the Company plans to seek stockholder approval to effect
a reverse stock split in late December 1998. The Company believes that the
proposed reverse stock split will increase the minimum bid price of the Common
Stock to a level above the minimum bid price required for continued listing on
the Nasdaq National Market. However, there is a risk that the reverse split will
not have the intended effect and that the Company will fail to meet the minimum
bid price 



                                       5
<PAGE>

requirement or other minimum maintenance requirements established by the Nasdaq
Stock Market. Delisting usually results in more limited publication of the
market price of a company's stock and more limited news coverage. Delisting may
reduce investors' interest in the Common Stock. It may materially adversely
affect the trading markets and prices for the Common Stock and the Company's
ability to issue additional securities or to secure financing.

In Process R&D Write-Offs.

The Securities Exchange Commission (the "SEC") has recently informally set forth
guidelines relating to the write-off of in-process research and development
costs. These guidelines, if applied retroactively, could reduce the Company's
in-process research and development write-offs for acquisitions which took place
prior to September 30, 1998. A reduction in these write-offs would result in a
corresponding increase in the amount of goodwill associated with the applicable
acquisitions. The Company is aware that the SEC and the U.S. accounting
profession are in dialogue regarding the retroactive application of these recent
guidelines. The Company cannot predict the outcome of that dialogue, but intends
to comply with that outcome after it is announced.

International Operations and Currency Exchange Rate Fluctuations. The Company
conducts its business worldwide. The worldwide business may be affected by
changes in demand resulting from fluctuations in currency exchange rates, as
well as by governmental controls and other risks associated with international
sales (such as changes in various regulatory requirements, political and
economic changes and disruptions, export/import controls, tariff regulations,
difficulties in staffing and managing foreign sales and support operations,
greater difficulties in trade accounts receivable collection, and possibly
adverse tax consequences). The Company generates sales primarily in U.S.
dollars, British pounds, French francs and German deutchmarks and incurs
expenses principally in the same currencies. Fluctuations in the value of the
U.S. dollar and foreign currencies have caused, and are likely to continue to
cause, amounts translated in to U.S. dollars to fluctuate in comparison with
previous periods. The Company generally has not attempted to limit its foreign
currency exposure through foreign currency exchange rate hedging transactions.
Exchange rate fluctuations or other risks associated with international
operations may have a material adverse affect on the Company's business,
financial condition and results of operations.

Euro Conversion.

On January 1, 1999, 11 of the 15 member countries of the European Union are
scheduled to establish fixed conversion rates between their existing sovereign
currencies and the Euro. The transition to the Euro will be complete as of
January 1, 2002. The Company has significant operations within the European
Union and is currently preparing for the Euro conversion. The issues that the
Company is addressing include preparing its information systems for the Euro,
analyzing the benefit of decreased exchange rate risk in cross border
transactions involving participating countries and assessing the potential
impact of increased price transparency. In addition, the Euro is expected to
affect general economic conditions within the participating countries. For
example this already caused a convergence of interest rates among the Euro block
countries. The Company is analyzing the impact of the Euro with a view to
minimizing the impact on the Company's operations. The Company does not expect
the costs of upgrading its systems for the Euro to be material.

Impact of the Year 2000.

Background

Some computers, software, and other equipment include programming code in which
calendar year data is abbreviated to only two digits. As a result of this design
decision, some of the systems do not properly recognize a year that begins with
"20" instead of "19". These problems are widely expected to increase in
frequency and severity as the year 2000 approaches, and are commonly referred to
as the "Millennium Bug" or "Year 2000 problem".

                                       6
<PAGE>

Interleaf Approach


Interleaf established a Year 2000 project team to address all aspects of the
Year 2000 problem in each area of its business. The project team has four areas
of focus, each with its own project manager. These four areas are: (1) the
software that is created by Interleaf and sold to customers; (2) internal
business systems; (3) the hardware and operating system software used by
employees; and (4) facilities and critical vendors other than computer
suppliers.


Interleaf Created Products

Assessment:
- -----------

In 1997 Interleaf began to focus on the Year 2000 problem regarding its software
products created for sale to customers. Products that generate the most revenue
or create the highest risk were prioritized for testing and repair. The
assessment of these products was completed in early 1998 and the repair process
begun. The Company made the decision to discontinue sales and support for
certain low volume products and computer platforms.

Customer Communications:
- ------------------------

The Company sent a description of its Year 2000 product strategy to all of its
maintenance customers. It created and is maintaining a Year 2000 product status
page as part of its web site. Interleaf will distribute another mailing to the
entire maintenance base with the status of the year 2000 releases and a list of
retired products and platforms in the fourth calendar quarter of 1998.

Status:
- -------

Most major products have been tested and modified, and updates which correct any
known Year 2000 problems with those products are available at no extra charge to
the customers with current maintenance contracts for most of the computer
platforms that will be supported beyond the year 2000. Year 2000 updates will be
completed for supported products by the end of the first calendar quarter of
1999. The extent of the changes required ranges from simple recompilation with
Year 2000 compliant operating systems to extensive modifications. Testing and
repair of layered applications has begun and will be completed by the end of the
second calendar quarter of 1999. The Company expects that the layered
applications will not require significant modifications, since initial analysis
has indicated that there is no date handling performed by these products.
Moreover, in many instances the Company created layered applications under
contracts with specific customers, and not for general re-sale, and the Company
believes that it has no obligation to modify those applications to address the
Year 2000 problem. All products under development are being developed to be Year
2000 compliant.

Internal Business Systems

Interleaf contracted an independent third party to perform Year 2000 compliance
testing on its critical internal business systems. Some problems were identified
and appropriate modifications were made. The systems were then re-tested and
performed successfully. The software vital to corporate operations has been
proven by the independent third party to function without problems related to
the millennium change. The assessment phase is now underway for business
software used in Europe, Japan, and Australia. The Company's intent is to insure
that all critical internal business software is Year 2000 compliant by the end
of the first calendar quarter of 1999.

Hardware and Operating Systems Software

Assessment of the systems used by employees began in early 1997 and has been
completed. The Company has developed a plan to upgrade or replace all critical
systems used by employees, including all hardware in the enterprise from servers
to laptops. The upgrade/replacement process began in early 1998 and is
approximately 40% complete. The entire process is anticipated to be complete by
the end of the third calendar quarter of 1999.


Facilities and Critical Vendors

In the fourth calendar quarter of 1998 Interleaf will begin discussions with
facility management of its leased office spaces to ensure that the proper
actions are taken to avoid disruption of productivity in all Interleaf
facilities. Two 



                                       7
<PAGE>

major elements of Interleaf's business, payroll and manufacturing, are
outsourced. Interleaf is currently working with those service providers to
insure that operations of these critical business areas will not be affected by
the Millennium change.

Cost

The costs of the Interleaf Year 2000 efforts are being funded out of cash flow
from operations. The total cost associated with the required modifications and
upgrades associated with the Year 2000 projects is not expected to be material
to the Company's financial position. The process of repairing and testing the
software that Interleaf creates for sale has been done with existing personnel.
The Year 2000 testing equipment and lab environment have been created using
existing equipment and space. The capital costs associated with the upgrade and
replacement of corporate and field office computing environments is budgeted to
be approximately $250,000. These expenditures began in late 1997 and will
continue through the third calendar quarter of 1999. Software maintenance costs
attributable to the Year 2000 process will be approximately $50,000. Labor
associated with this process of implementing the internally used systems comes
from the existing budgeted personnel.

Risk

Interleaf has made a significant effort to address its Year 2000 issues. At this
time, there are no identifiable significant risks associated with its Year 2000
readiness, although there is a risk that unanticipated problems may arise. The
Company intends to begin preparing a contingency plan to address reasonably
likely worst case scenarios in the second calendar quarter of 1999.


Risks Associated with Acquisitions.

As part of its business strategy in recent months, the Company has made several
acquisitions. It continues to investigate making additional acquisitions of, or
significant investments in, businesses that offer complementary products and
technologies. There are certain risks commonly encountered in acquisitions of
businesses. These include, among others, the difficulty of assimilating the
operations, information systems and personnel of the acquired businesses; the
potential disruption of the Company's ongoing business; the inability of
management to realize any expected synergy; the maintenance of uniform
standards, controls, and policies; and the impairment of relationships with
employees and customers as a result of any integration of new personnel. The
Company can not assure that it will make any acquisition or, if it was, that the
acquisition will be successful.

                                 USE OF PROCEEDS

The Company will not receive any proceeds from the sale by the Selling
Stockholders of the shares of Common Stock offered under this Prospectus.

                              SELLING STOCKHOLDERS

The shares of Common Stock covered by this Prospectus are being offered by the
persons listed below (the "Selling Stockholders"). The Company intends to issue
4,561,250 shares of the Common Stock to the Selling Stockholders in connection
with the private placement described below.

On November 18, 1998, the Company entered into Common Stock Purchase Agreements
(the "Purchase Agreements") with certain officers, directors and existing
stockholders of the Company (the "Private Placement Investors") under which each
of them granted the Company a put option to require them to purchase a specified
number of shares of Common Stock, up to an aggregate maximum of 4,561,250
shares, at a purchase price of $.80 per share upon written notice from the
Company at any time until the later of (1) December 31, 1998, or (2) five days
after the effective date of the Registration Statement of which this Prospectus
is a part.

                                       8
<PAGE>

Under the terms of the Purchase Agreements, the Private Placement Investors were
not obligated to purchase the Common Stock unless the shares were registered for
resale by the Selling Stockholders. On December ___, 1998, the Company sold an
aggregate of 4,561,250 shares of Common Stock to the Selling Stockholders.

Certain of the Private Placement Investors required, as a condition of their
investment, that certain officers and directors of the Company demonstrate their
commitment to the Company by purchasing shares of the Company's Common Stock in
the Private Placement. Accordingly, Mr. Jaime W. Ellertson, President and Chief
Executive Officer, Peter J. Rice, Chief Financial Officer, John E. Pavlov, Vice
President of Development, Craig Newfield, Vice President and General Counsel,
Frederick B. Bamber, a director and Rory J. Cowan, Chairman of the Board, each
agreed to purchase that number of shares of Common Stock set forth below under
the column "Maximum Number of Shares Being Offered."


The following table sets forth (a) the number of shares of Common Stock
beneficially owned by each of the Selling Stockholders as of November 18, 1998
after taking into account the sale of shares of Common Stock in the Private
Placement, (b) the maximum number of shares of Common Stock that may be offered
by the Selling Stockholder under this Prospectus, (c) the number of shares of
Common Stock that will be beneficially owned by each Selling Stockholder if all
of the shares that may be offered under this Prospectus are sold, and (d) the
percentage of Common Stock owned after the offering if all of the shares that
may be offered under this Prospectus are sold.

Other than as provided above and in the footnotes to the table, the Selling
Stockholders have not held any position or office, or had any other material
relationship with the Company for the past three years. The information with
regard to each Selling Stockholder provided in the table and footnotes below is
based upon information provided to the Company by that Selling Stockholder.

<TABLE>
<CAPTION>
                                                                                                             Percentage
                                            Number of Shares        Maximum Number      Number of Shares     of Class
                                        Beneficially Owned as of   of Shares Being    Beneficially Owned    Owned after
Name of Beneficial Owner                  November 18, 1998 (1)         Offered        after Offering (2)    Offering (2)
- ----------------------------            ------------------------  ----------------    -------------------   -------------
<S>                                               <C>                  <C>                   <C>                <C>  
GeoCapital Corporation                            4,405,900            1,875,000             2,530,900          11.3%
S2 Technology                                     2,383,900            1,875,000               508,900          2.3%
PAW Partners                                      1,105,000              625,000               480,000          2.1%
Jaime W. Ellertson (3) (4)                          512,225              150,000               387,225          2.3%
Frederick B. Bamber (3) (5)                          45,600               12,500                33,100            *
Rory J. Cowan (3) (6)                                91,250                6,250                85,000            *
Peter J. Rice (3)                                    12,250                6,250                 6,000            *
John E. Pavlov (3) (7)                               37,500                5,000                32,500            *
Craig Newfield (3) (8)                               37,500                6,250                31,250            *
</TABLE>
- -----------

*    Less than one percent.

(1)  Includes shares of Common Stock purchased pursuant to the Private Placement
     and being offered for resale hereunder.

(2)  Assumes the sale of all shares of Common Stock registered under this
     Prospectus. Because the Selling Stockholders may offer all or some of the
     Common Stock pursuant to the offering contemplated by this Prospectus, no
     estimate can be given as to the amount of the Common Stock that will be
     held by the Selling Stockholders upon the termination of this offering. See
     "Plan of Distribution."

(3)  Denotes individual that currently serves as either an executive officer or
     director of the Company.

(4)  Includes 362,500 shares of Common Stock issuable pursuant to options which
     are exercisable within 60 days after December 1, 1998.

(5)  Includes 25,000 shares of Common Stock issuable pursuant to options which
     are exercisable within 60 days after December 1, 1998.

(6)  Includes 75,000 shares of Common Stock issuable pursuant to options which
     are exercisable within 60 days after December 1, 1998.

                                       9
<PAGE>

(7)  Includes 32,500 shares of Common Stock issuable pursuant to options which
     are exercisable within 60 days after December 1, 1998.

(8)  Includes 31,250 shares of Common Stock issuable pursuant to options which
     are exercisable within 60 days after December 1, 1998.

                              PLAN OF DISTRIBUTION

The Selling Stockholders may offer their shares of Common Stock from time to
time in transactions (which may include block transactions) on any exchange or
market on which the Common Stock is listed or quoted, in public or private
transactions, through a combination of such methods of sale, or otherwise, at
fixed prices that may be changed, at market prices prevailing at the time of
sale, at prices related to prevailing market prices, or at negotiated prices.
The Selling Stockholders may sell the Common Stock directly to purchasers,
through broker-dealers acting as agents for them, or to broker-dealers who may
purchase Common Stock as principals and then sell the Common Stock from time to
time in transactions which may include block transactions on any exchange or
market on which securities are listed or quoted, as applicable, in negotiated
transactions, through a combination of such methods of sale, or otherwise.
Broker-dealers engaged by Selling Stockholders may arrange for other
broker-dealers to participate in the sales. Broker-dealers may receive
compensation in the form of discounts, concessions or commissions from the
Selling Stockholders and/or the purchasers of the Common Stock. The
broker-dealers may act as agents for the Selling Stockholders or they may sell
to them as principals, or both. Particular broker-dealers may receive, as
compensation, commissions in excess of customary commissions.

Except as provided herein, the Company has agreed to pay all expenses incident
to the offer and sale of the Common Stock offered by the Selling Stockholders
under this Prospectus. The Company estimates such expenses to be approximately
$8,800. The Selling Stockholders will pay all selling commissions, brokerage
fees and related expenses.

To comply with the securities laws of certain jurisdictions, if applicable, the
Common Stock offered under this Prospectus will be offered or sold in such
jurisdictions only through registered or licensed brokers or dealers.

Under applicable rules and regulations under the Exchange Act, any person
engaged in a distribution of the Common Stock may be limited in its ability to
engage in market activities with respect to the Common Stock. In addition, each
Selling Stockholder will be subject to applicable provisions of the Exchange Act
and the rules and regulations under the Exchange Act, which may limit the timing
of purchases and sales of any of the Common Stock by the Selling Stockholders.

                                  LEGAL MATTERS

The validity of the shares of Common Stock offered hereby has been passed upon
for the Company by Craig Newfield, Esq., General Counsel to the Company.

                                     EXPERTS

The consolidated financial statements of Interleaf, Inc. appearing in  
Interleaf, Inc.'s Annual Report (Form 10-K) for the year ended March 31, 
1998, have been audited by Ernst & Young LLP, independent auditors, as set 
forth in their report thereon included therein and incorporated herein by 
reference. Such consolidated financial statements are incorporated herein by 
reference in reliance upon such report given upon the authority of such firm 
as experts in accounting and auditing.

The financial statements of PDR Automated Systems and Publications, Inc. 
appearing in the Company's Current report on Form 8-K as filed with the 
Commission on September 24, 1998 and the amendment thereto filed on November 
12, 1998, have been audited by Dulworth, Breeding & Karns, LLP, independent 
public accountants, as indicated in their report with respect thereto, and 
are incorporated by reference herein in reliance upon the authority of 
Dulworth, Breeding & Karns, LLP as experts in accounting and auditing.

                                       10
<PAGE>



This Prospectus is part of a registration statement the
Company filed with the Commission. You should rely only on
the information or representations provided in this
Prospectus. The Company has authorized no one to provide you
with different information. The Company is not making an
offer in any jurisdiction where the offering is not
permitted.




                                                                     

<TABLE>
<CAPTION>


                  TABLE OF CONTENTS                     Page
                  -----------------                     ----

<S>                                                      <C>
Additional Information................................   2
Incorporation of Certain Documents by Reference.......   2
Summary...............................................   3
Risk Factors..........................................   4
Use of Proceeds.......................................   8
Selling Stockholders..................................   8
Plan of Distribution..................................   10
Legal Matters.........................................   10
Experts...............................................   10


</TABLE>






               INTERLEAF, INC.            
                                          
 Up To 4,561,250 Shares of Common Stock   
                                          
                                          
                                          
                                          
               PROSPECTUS                 
                                          
            December __, 1998             
                                          



                                       11
<PAGE>



                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.   Other Expenses of Issuance and Distribution

    The following table sets forth the various expenses payable by the
Registrant in connection with the sale and distribution of the securities
registered hereby. All amounts are estimated except the SEC and Nasdaq filing
fee. Costs of issuance and distribution will be borne by the Registrant as
follows:

<TABLE>
<CAPTION>

<S>                                                   <C> 
      SEC Registration Fee....................          $   793
      Accounting Fees and Expenses............          $ 2,500
      Legal Fees and Expenses.................          $ 5,000
      Miscellaneous...........................          $   500
                                                    -----------
               Total..........................          $ 8,793
</TABLE>

Item 15.  Indemnification of Directors and Officers

(a) Section 67 of the Massachusetts Business Corporation Law permits
indemnification of present and former directors and officers to the extent
specified in or authorized by (i) the articles of organization, (ii) a by-law
adopted by the stockholders, (iii) a vote adopted by the holders of a majority
of the shares of stock entitled to vote, or (iv) in the case of officers who are
not directors, by the Board of Directors, except that no indemnification shall
be provided for any person with respect to any matter as to which he shall have
been adjudicated in any proceeding not to have acted in good faith in the
reasonable belief that his action was in the best interests of the corporation.
Section 67 also provides that the absence of any express provision for
indemnification shall not limit any right of indemnification existing
independently of such Section.

(b) Article V of the Company's By-laws provides that the Company shall, to the
extent legally permissible, indemnify each former or present director or officer
against all liabilities and expenses imposed upon or incurred by any such person
in connection with, or arising out of, the defense or disposition of any action,
suit or other proceeding, civil or criminal, in which he may be threatened or
involved, by reason of his having been a director or officer; provided that the
Company shall provide no indemnification with respect to any matter as to which
any such person shall be finally adjudicated in such action, suit or proceeding
not to have acted in good faith in the reasonable belief that his action was in
the best interests of the Company. If any such action is disposed of, on the
merits or otherwise, without the disposition being adverse to the director or
officer and without an adjudication that such person did not act in good faith
in the reasonable belief that his action was in the best interests of the
Company, the director or officer is entitled to indemnification as a matter of
right. In all other cases, indemnification shall be made as of right unless
after investigation (a) by the Board of Directors by a majority vote of a quorum
of disinterested directors, or (b) by written opinion of independent legal
counsel (who may be regular counsel of the Company), or (c) the holders of a
majority of outstanding stock entitled to vote (exclusive of stock owned by any
interested directors or officers), it shall be determined by clear and
convincing evidence that such person did not act in good faith and in a manner
reasonably believed to be in or not opposed to the best interest of the Company.
Indemnification may include advancement of expenses of defending an action upon
receipt of an undertaking by the person indemnified to repay such advances if it
is ultimately determined that such person is not entitled to indemnification
under Article V. Article V also provides that the right of indemnification
provided therein is not exclusive of and does not affect any other rights to
which any director or officer may be entitled under any agreement, statute, vote
of stockholders or otherwise. The Company's obligation to indemnify under
Article V shall be offset to the extent of any other source of indemnification
or any otherwise applicable insurance coverage.

(c) The Company has entered into an Agreement to Defend and Indemnify with each
of its officers and directors. Pursuant to these agreements, the Company has
agreed, to the extent legally permissible, to indemnify such person against all
losses (including, without limitation, judgments, fines and penalties) and
expenses (including, without limitation, amounts paid in settlement and counsel
fees and disbursements) incurred by such person in connection with or as a
result of any claim, action, suit or other proceeding, civil or criminal, or
appeal related



                                      II-1
<PAGE>

thereto, in which he may be involved by reason of his having been a director or
officer or by reason of any action taken or not taken in his capacity as
director or officer; provided that no indemnification shall be provided with
respect to any matter as to which such person shall not have acted in good faith
in the reasonable belief that his action was in the best interests of the
Company. If any such claim, action, suit or proceeding is disposed of, on the
merits or otherwise, without the disposition being adverse to such person,
without a plea of guilty or NOLO CONTENDRE and without an adjudication that such
person did not act in good faith in the reasonable belief that his action was in
the best interests of the Company, the director or officer is entitled to
indemnification as a matter of right. In all other cases, indemnification shall
be made upon a determination that such person's conduct was in good faith and in
the reasonable belief that his action was in the best interests of the Company
by (a) a quorum of disinterested directors, or (b) independent legal counsel
(who may be regular counsel of the Company), or (c) the holders of a majority of
outstanding stock entitled to vote (exclusive of stock owned by an interested
directors or officer). Expenses may be advanced by the Company prior to any
final disposition of any such action upon receipt of an undertaking by the
person indemnified to repay such advances if it is ultimately determined that
such person is not entitled to indemnification under the Agreement. Such
Agreements provide that the right of indemnification provided therein is in
addition to any rights to which any person concerned may be entitled by other
agreements or as a matter of law, and shall inure to the benefit of the heirs,
executors and administrators of the indemnified person. The rights of
indemnification provided in such Agreements are in addition to any rights under
any insurance policy in effect, provide that to the extent any claim is covered
by any such insurance policy, the Company will provide coverage after the full
coverage of the insurance policy is exhausted or otherwise unavailable.

(d) Article 6D of the Company's Articles of Organization provides that, to the
fullest extent permitted by Chapter 156B of the Massachusetts General Laws, a
director of the Company shall not be personally liable to the Company or its
stockholders for monetary damages for breach of fiduciary duty as a director,
notwithstanding any provision of law imposing such liability. Section 13(b)(1
1/2) of Chapter 156B of the Massachusetts General Laws permits a corporation to
include in its articles of organization a provision eliminating or limiting the
personal liability of a director to the corporation or its stockholders for
monetary damages for breach of fiduciary as a director, except for (i) any
breach of the director's duty of loyalty to the corporation and its
stockholders, (ii) acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of the law, (ii) improper
issuances of stock or unauthorized distributions to stockholders, or (iv) any
transaction in which the director derived an improper personal benefit.

Item 16.    Exhibits

<TABLE>
<CAPTION>

Exhibit
Number                       Description of Exhibit
- ------                       ----------------------

<S>   <C>

3.1     Restated Articles of Organization of the Company, as amended (Filed as the
        applicable exhibit to the Company's Report on Form 10-Q for the fiscal
        quarter ended September 30, 1997)*
        
3.2     By-Laws of the Company, as amended (Filed as the applicable exhibit to the
        Company's Annual Report on Form 10-K for the fiscal year ended March 31,
        1994)*
        
4.1     Specimen Certificate for shares of the Company's Common Stock (Filed as the
        applicable exhibit to the Company's Registration Statement on Form S-1,
        File No. 33-5743)*
        
5.1     Legal Opinion of Craig Newfield, Esq.**
        
23.1    Consent of Ernst & Young LLP **

23.2    Consent of Dulworth, Breeding & Karns, LLP **
</TABLE>

                                      II-2
<PAGE>

<TABLE>
<CAPTION>

Exhibit
Number                       Description of Exhibit
- ------                       ----------------------

<S>   <C>

23.3    Consent of Craig Newfield, Esq. (contained in Exhibit 5.1)**
        
24      Power of Attorney (contained on Signature Page of this Registration
        Statement)**
</TABLE>
       
- ------------------

*    Not filed herewith. In accordance with Rule 411 promulgated pursuant to the
     Securities Act of 1933, as amended, reference is made to the documents
     previously filed with the Commission, which are incorporated by reference
     herein.

**   Filed herewith.

Item 17.  Undertakings

    (a)  The undersigned Registrant hereby undertakes:

        (1) To file, during any period in which offers or sales are being made,
    a post-effective amendment to this Registration Statement:

             (i)  To include any prospectus required by section 10(a)(3) of
                  the Securities Act;

             (ii) To reflect in the prospectus any facts or events arising after
                  the effective date of the Registration Statement (or the most
                  recent post-effective amendment thereof) which, individually
                  or in the aggregate, represent a fundamental change in the
                  information in the Registration Statement;

             (iii)To include any material information with respect to the plan
                  of distribution not previously disclosed in the Registration
                  Statement or any material change to such information in the
                  Registration Statement;

   provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) of this section
   do not apply if the information required to be included in a post-effective
   amendment by those paragraphs is contained in periodic reports filed with or
   furnished to the Commission by the Registrant pursuant to section 13 or
   section 15(d) of the Exchange Act that are incorporated by reference in the
   Registration Statement.

        (2) That, for the purpose of determining any liability under the
    Securities Act, each such post-effective amendment shall be deemed to be a
    new registration statement relating to the securities offered therein, and
    the offering of such securities at that time shall be deemed to be the
    initial bona fide offering thereof.

        (3) To remove from registration by means of a post-effective amendment
    any of the securities being registered which remain unsold at the
    termination of the offering.

    (b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
Registrant's annual report pursuant to section 13(a) or section 15(d) of the
Exchange Act (and, where applicable, each filing of an employee benefit plan's
annual report pursuant to section 15(d) of the Exchange Act) that is
incorporated by reference in the Registration Statement shall be deemed to be a
new Registration Statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

    (c) Not applicable.

    (d) Not applicable.

                                      II-3
<PAGE>

    (e) Not applicable.

    (f) Not applicable.

    (g) Not applicable.

    (h) Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the Commission such indemnification is
against public policy as expressed in the Securities Act and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or
paid by a director, officer or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question of whether such indemnification by it is against
public policy as expressed in the Securities Act and will be governed by the
final adjudication of such issue.

    (i) Not applicable.

    (j) Not applicable.



                                      II-4
<PAGE>




                                   SIGNATURES

    Pursuant to the requirements of the Securities Act, the Registrant certifies
that it has reasonable grounds to believe that it meets all the requirements for
filing on Form S-3 and has duly caused this Registration Statement to be signed
on its behalf by the undersigned, thereunto duly authorized, in City of Waltham,
Commonwealth of Massachusetts, on December 17, 1998.

                                   INTERLEAF, INC.


                                         By:  /s/ Jaime W. Ellertson
                                              ---------------------------------
                                              Jaime W. Ellertson, President
                                                    and Chief Executive Officer


                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Jaime W. Ellertson, Peter Rice and Craig
Newfield, and each of them (with full power to each of them to act alone), his
or her true and lawful attorneys-in-fact and agents, with full power of
substitution and resubstitution, for him or her and in his or her name, place
and stead, in any and all capacities, to sign any or all amendments (including
post-effective amendments) to this Registration Statement, and to file the same,
with all exhibits thereto and other documents in connection therewith, and, in
connection with any registration of additional securities pursuant to Rule
462(b) under the Securities Act, to sign any abbreviated registration statement
and any and all amendments thereto, and to file the same, with all exhibits
thereto and other documents in connection therewith, in each case, with the
Commission, granting unto said attorneys-in-fact and agents, and each of them,
full power and authority to do and perform each and every act and thing
requisite and necessary to be done in and about the premises, as fully to all
intents and purposes as he or she might or could do in person, hereby ratifying
and confirming all that said attorneys-in-fact and agents, or either of them, or
their substitutes, may lawfully do or cause to be done by virtue hereof.

    Pursuant to the requirements of the Securities Act, this Registration
Statement has been signed by the following persons in the capacities and on the
dates indicated.

<TABLE>
<CAPTION>

                    Signature                                       Title                                 Date
                    ---------                                       -----                                 ----
    <S>                                          <C>                                             <C>   

         /s/ Jaime W. Ellertson                     President and Chief Executive                   December 17, 1998
- --------------------------------------------
         Jaime W. Ellertson                             Officer, and Director (Principal
                                                        Executive Officer)


         /s/ Peter J. Rice                          Vice President of Finance and                   December 17, 1998
- --------------------------------------------
         Peter J. Rice                                  Administration, Chief Financial
                                                        Officer and Treasurer (Principal
                                                        Financial and Accounting Officer)

         /s/ Frederick B. Bamber                    Director                                        December 17, 1998
- --------------------------------------------
         Frederick B. Bamber

         /s/ David A. Boucher                       Director                                        December 17, 1998
- --------------------------------------------
         David A. Boucher

         /s/. Rory J. Cowan                         Chairman of the Board of Directors              December 17, 1998
- --------------------------------------------
         Rory J. Cowan

         /s/ Marcia J. Hooper                       Director                                        December 17, 1998
- --------------------------------------------
         Marcia J. Hooper

         /s/ John A. Lopiano                        Director                                        December 17, 1998
- --------------------------------------------
         John. A. Lopiano

</TABLE>



                                      II-5
<PAGE>



                                  EXHIBIT INDEX
<TABLE>
<CAPTION>

Exhibit
Number                       Description of Exhibit
- ------                       ----------------------

<S>    <C>

3.1     Restated Articles of Organization of the Company, as amended (Filed as the
        applicable exhibit to the Company's Report on Form 10-Q for the fiscal
        quarter ended September 30, 1997)*
       
3.2     By-Laws of the Company, as amended (Filed as the applicable exhibit to the
        Company's Annual Report on Form 10-K for the fiscal year ended March 31,
        1994)*
       
4.1     Specimen Certificate for shares of the Company's Common Stock (Filed as the
        applicable exhibit to the Company's Registration Statement on Form S-1,
        File No. 33-5743)*
       
5.1     Legal Opinion of Craig Newfield, Esq.**
       
23.1    Consent of Ernst & Young LLP**
       
23.2    Consent of Dulworth, Breeding & Karns, LLP **
       
23.3    Consent of Craig Newfield, Esq. (contained in Exhibit 5.1)**
       
24      Power of Attorney (contained on Signature Page of this Registration
        Statement)**
</TABLE>
- ------------
*       Not filed herewith. In accordance with Rule 411 promulgated pursuant to
        the Securities Act of 1933, as amended, reference is made to the
        documents previously filed with the Commission, which are incorporated
        by reference herein.

**      Filed herewith.




                                      E-1


<PAGE>

                               Exhibits 5.1 & 23.3

December 17, 1998

Interleaf, Inc.
62 Fourth Avenue
Waltham, MA 02451


Gentlemen:

I have assisted in the preparation of a Registration Statement on Form S-3 to be
filed with the Securities and Exchange Commission (the "Registration
Statement"), relating to 4,561,250 shares of Common Stock, $.01 par value per
share (the "Shares"), of Interleaf, Inc., a Massachusetts corporation (the
"Company"), pursuant to the several Common Stock Purchase Agreements between the
Company and each of certain accredited investors dated as of November 18, 1998
(collectively, the "Agreement").

I have examined (i) the Restated Articles of Organization and By-laws of the
Company and all amendments thereto, (ii) the Agreement, and (iii) such records
of meetings of the directors and stockholders of the company, documents and
other instruments as in my judgment are necessary or appropriate to enable me to
render the opinion expressed below.

In my examination of the foregoing documents, I have assumed the genuineness of
all signatures and the authenticity of all documents submitted to me as
originals, the conformity to original documents of all documents submitted to me
as certified or photostatic copies, and the authenticity of the originals of
such latter documents.

Based upon the foregoing, I am of the opinion that the Shares have been duly
authorized for issuance and, when issued pursuant to the terms of the Agreement,
will be legally issued, fully paid and nonassessable.

I hereby consent to the use of my name in the Registration Statement and consent
to the filing of this opinion with the Securities and exchange Commission as an
exhibit to the Registration Statement.

Very truly yours,


   /s/  Craig Newfield
- ----------------------------
Craig Newfield,
General Counsel




                                      E-2

<PAGE>

                                  EXHIBIT 23.1



                         CONSENT OF INDEPENDENT AUDITORS



 We consent to the reference to our firm under the caption "Experts" in the 
Registration Statement (Form S-3) and related Prospectus of Interleaf, Inc. 
for the registration of 4,561,250 shares of its common stock and to the 
incorporation by reference therein of our report dated May 13, 1998 with 
respect to the consolidated financial statements and schedule of Interleaf, 
Inc. included in its Annual Report (Form 10-K) for the year ended March 31, 
1998, filed with the Securities and Exchange Commission.

                                               Ernst & Young LLP



Boston, Massachusetts
December 11, 1998



<PAGE>

                                                                   Exhibit 23.2



CONSENT OF INDEPENDENT ACCOUNTANTS


December 15, 1998



The Board of Directors
PDR Automated Systems and Publications, Inc.
800 Corporate Drive, Suite 200
Lexington, KY 40503


To the Board of Directors:

We agree to the inclusion by reference in the Form S-3 of Interleaf, Inc., 
dated December 17, 1998 of our independent auditors' report and independent 
accountants' compilation report, dated September 17, 1998, on our audit of 
the financial statements of PDR Automated Systems and Publications, Inc., as 
of June 30, 1998, and December 31, 1997, and for the six months ended June 
30, 1998, and for the year ended December 31, 1997, and our compilation of 
the financial statements for the six months ended June 30, 1997.


Yours truly,





Dulworth, Breeding & Karns, LLP



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