Exhibit 10(a2)                     INTERLEAF, INC.

                               1993 STOCK OPTION PLAN

1.   Purpose.

      The purpose of this plan (the "Plan") is to secure for Interleaf, Inc.
(the "Company") and its shareholders the benefits arising from capital stock
ownership by employees, officers and directors of, and consultants or advisors
to, the Company and its parent and subsidiary corporations who are expected to
contribute to the Company's future growth and success. Except where the context
otherwise requires, the term "Company" shall include the parent and all present
and future subsidiaries of the Company as defined in Sections 425(e) and 425(f)
of the Internal Revenue Code of 1986, as amended or replaced from time to time
(the "Code").

  2. Type of Options and Administration.

      (a) Types of Options. Options granted pursuant to the Plan shall be
authorized by action of the Board of Directors of the Company (or a Committee
designated by the Board of Directors) and may be either incentive stock options
("Incentive Stock Options") meeting the requirements of Section 422 of the Code
or non-statutory options which are not intended to meet the requirements of
Section 422 of the Code.

      (b) Administration. The Plan will be administered by the Board of
Directors of the Company, whose construction and interpretation of the terms and
provisions of the Plan shall be final and conclusive. The Board of Directors may
in its sole discretion grant options to purchase shares of the Company's Common
Stock ("Common Stock") and issue shares upon exercise of such options as
provided in the Plan. The Board shall have authority, subject to the express
provisions of the Plan, to construe the respective option agreements and the
Plan, to prescribe, amend and rescind rules and regulations relating to the
Plan, to determine the terms and provisions of the respective option agreements,
which need not be identical, and to make all other determinations in the
judgment of the Board of Directors necessary or desirable for the administration
of the Plan. The Board of Directors may correct any defect or supply any
omission or reconcile any inconsistency in the Plan or in any option agreement
in the manner and to the extent it shall deem expedient to carry the Plan into
effect and it shall be the sole and final judge of such expediency. No director
shall be liable for any action or determination made in good faith. The Board of
Directors may, to the full extent permitted by or consistent with applicable
laws or regulations (including, without limitation, applicable state law and
Rule l6b-3 promulgated under the Securities Exchange Act of 1934 (the "Exchange
Act"), or any successor rule ("Rule l6b-3"), delegate any or all of its powers
under the Plan to a committee (the "Committee") appointed by the Board of
Directors, and if the Committee is so appointed all references to the Board of
Directors in the Plan shall mean and relate to such Committee.


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      (c) Applicability of Rule l6b-3. Those provisions of the Plan which make
express reference to Rule l6b-3 shall apply to the Company only at such time as
the Company's Common Stock is registered under the Exchange Act, and then only
to such persons as are required to file reports under Section 16(a) of the
Exchange Act (a "Reporting Person").

  3. Eligibility.

      (a) General. Options shall be granted to persons who are, at the time of
grant, employees, officers or directors of, or consultants or advisors to, the
Company; provided, that Incentive Stock Options may be granted only to persons
who are eligible to receive such options under Section 422 of the Code. A person
who has been granted an option may, if he or she is otherwise eligible, be
granted an additional option or options if the Board of Directors shall so
determine.

      (b) Grant of Options to Reporting Persons. While the Company's Common
Stock is registered under the Exchange Act, the selection of a Reporting Person
as a participant and decisions concerning the date of grant, exercise price and
amount of shares covered by an option or options to be granted to such Reporting
Person shall be made either by the Board of Directors, if each member is a
"disinterested person" (as hereinafter defined), or by a committee of two or
more directors, each of whom is a "disinterested person." For purposes of this
Plan, a person is a "disinterested person" only if such person qualifies as a
"disinterested person" within the meaning of paragraph (c)(1)(2)(i) of Rule
l6b-3 (or successor), as such term is interpreted from time to time.

4. Stock Subject to Plan.

      Subject to adjustment as provided in Section 15 below, the maximum number
of shares of Common Stock of the Company which may be issued and sold under the
Plan is 2,100,000 shares. If an option granted under the Plan shall expire or
terminate for any reason without having been exercised in full, the unpurchased
shares subject to such option shall again be available for subsequent option
grants under the Plan. If shares issued upon exercise of an option under the
Plan are tendered to the Company in payment of the exercise price of an option
granted under the Plan, such tendered shares shall again be available for
subsequent option grants under the Plan; provided, that in no event shall (i)
the total number of shares issued pursuant to the exercise of Incentive Stock
Options under the Plan, on a cumulative basis, exceed the maximum number of
shares authorized for issuance under the Plan exclusive of shares made available
for issuance pursuant to this sentence or (ii) the total number of shares issued
pursuant to the exercise of options by Reporting Persons, on a cumulative basis,
exceed the maximum number of shares authorized for issuance under the Plan
exclusive of shares made available for issuance pursuant to this sentence.


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5. Forms of Option Agreements.

      As a condition to the grant of an option under the Plan, each recipient of
an option shall execute an option agreement in such form not inconsistent with
the Plan as may be approved by the board of directors. Such option agreements
may differ among recipients.

6. Purchase Price.

      (a) General. The purchase price per share of stock deliverable upon the
exercise of an option shall be determined by the board of directors, provided,
however, that (i) in the case of an Incentive Stock Option, the exercise price
shall not be less than 100% of the fair market value of such stock, as
determined by the Board of Directors, at the time of grant of such option, or
less than 110% of such fair market value in the case of options described in
Section 11(b), and (ii) in the case of a non-statutory option granted at a time
when the Company is subject to Rule l6b-3, the exercise price shall not be less
than 100% of the fair market value of such stock, as determined by the Board of
Directors, at the time of grant of such option.

      (b) Payment of Purchase Price. Options granted under the Plan may provide
for the payment of the exercise price by delivery of cash or a check to the
order of the Company in an amount equal to the exercise price of such options,
or, to the extent provided in the applicable option agreement, (i) by delivery
to the Company of shares of Common Stock of the Company already owned by the
optionee having a fair market value equal in amount to the exercise price of the
options being exercised, (ii) by any other means which the Board of Directors
determines are consistent with the purpose of the Plan and with applicable laws
and regulations (including, without limitation, the provisions of Rule l6b-3 and
Regulation T promulgated by the Federal Reserve Board) or (iii) by any
combination of such methods of payment. The fair market value of any shares of
the Company's Common Stock or other non-cash consideration which may be
delivered upon exercise of an option shall be determined in such manner as may
be prescribed by the Board of Directors.

7. Option Period.

      Each option and all rights thereunder shall expire on such date as shall
be set forth in the applicable option agreement, except that such date, in the
case of an Incentive Stock Option, shall in no case be later than ten years
after the date on which the option is granted.

8. Exercise of Options.

      Each option granted under the Plan shall be exercisable either in full or
in installments at such time or times and during such period as shall be set
forth in the agreement evidencing such option, subject to the provisions of the
Plan.


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9. Nontransferability of Options.

      Incentive Stock Options and options granted to Reporting Persons shall not
be assignable or transferable by the person to whom it is granted, either
voluntarily or by operation of law, except by will or the laws of descent and
distribution, and, during the life of the optionee, shall be exercisable only by
the optionee.

10. Effect of Termination of Employment or Other Relationship.

      The Board of Directors shall determine the period of time during which an
optionee may exercise an option following (i) the termination of the optionee's
employment or other relationship with the Company or (ii) the death or
disability of the optionee. Such periods shall be set forth in the agreement
evidencing such option.

 11. Incentive Stock Options.

      Options granted under the Plan which are intended to be Incentive Stock
Options shall be subject to the following additional terms and conditions:

      (a) Express Designation. All Incentive Stock Options granted under the
Plan shall, at the time of grant, be specifically designated as such in the
option agreement covering such Incentive Stock Options.

      (b) 10% Shareholder. If any employee to whom an Incentive Stock Option is
to be granted under the Plan is, at the time of the grant of such option, the
owner of stock possessing more than 10% of the total combined voting power of
all classes of stock of the Company (after taking into account the attribution
of stock ownership rules of Section 425(d) of the Code), then the following
special provisions shall be applicable to the Incentive Stock Option granted to
such individual:

            (i) The purchase price per share of the Common Stock subject to such
      Incentive Stock Option shall not be less than 110% of the fair market
      value of one share of Common Stock at the time of grant; and

            (ii) The option exercise period shall not exceed five years from the
      date of grant.

     (c) Dollar Limitation. For so long as the Code shall so provide, options
granted to any employee under the Plan (and any other incentive stock option
plans of the Company) which are intended to constitute Incentive Stock Options
shall not constitute Incentive Stock Options to the extent that such options, in
the aggregate, become exercisable for the first time in any one calendar year
for shares of Common Stock with an aggregate fair market value (determined as of
the respective date or dates of grant) of more than $100,000.

      (d) Termination of Employment, Death or Disability. No Incentive Stock
Option may be exercised unless, at the time of such exercise, the optionee is,
and has been 


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<PAGE>

continuously since the date of grant of his or her option, employed
by the Company, except that:

            (i) an Incentive Stock Option may be exercised within the period of
      three months after the date the optionee ceases to be an employee of the
      Company (or within such lesser period as may be specified in the
      applicable option agreement), provided, that the agreement with respect to
      such option may designate a longer exercise period and that the exercise
      after such three-month period shall be treated as the exercise of a
      non-statutory option under the Plan;

            (ii) if the optionee dies while in the employ of the Company, or
      within three months after the optionee ceases to be such an employee, the
      Incentive Stock Option may be exercised by the person to whom it is
      transferred by will or the laws of descent and distribution within the
      period of one year after the date of death (or within such lesser period
      as may be specified in the applicable option agreement); and

            (iii) if the optionee becomes disabled (within the meaning of
      Section 22(e)(3) of the Code or any successor provision thereto) while in
      the employ of the Company, the Incentive Stock Option may be exercised
      within the period of one year after the date the optionee ceases to be
      such an employee because of such disability (or within such lesser period
      as may be specified in the applicable option agreement).

For all purposes of the Plan and any option granted hereunder, "employment"
shall be defined in accordance with the provisions of Section 1.421-7(h) of the
Income Tax Regulations (or any successor regulations). Notwithstanding the
foregoing provisions, no Incentive Stock Option may be exercised after its
expiration date.

12. Additional Provisions.

      (a) Additional Option Provisions. The Board of Directors may, in its sole
discretion, include additional provisions in any option granted under the Plan,
including without limitation restrictions on transfer, repurchase rights,
commitments to pay cash bonuses, to make, arrange for or guaranty loans or to
transfer other property to optionees upon exercise of options, or such other
provisions as shall be determined by the Board of Directors; provided that such
additional provisions shall not be inconsistent with any other term or condition
of the Plan.

      (b) Acceleration, Extension, Etc. The Board of Directors may, in its sole
discretion, (i) accelerate the date or dates on which all or any 


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<PAGE>

particular option or options granted under the Plan may be exercised or (ii)
extend the dates during which all, or any particular option or options granted
under the Plan may be exercised; provided, however, that no such extension shall
be permitted if it would cause the Plan to fail to comply with Section 422 of
the Code or with Rule l6b-3.

13. General Restrictions.

      (a) Investment Representations. The Company may require any person to whom
an option is granted, as a condition of exercising such option, to give written
assurances in substance and form satisfactory to the Company to the effect that
such person is acquiring the Common Stock subject to the option for his or her
own account for investment and not with any present intention of selling or
otherwise distributing the same, and to such other effects as the Company deems
necessary or appropriate in order to comply with federal and applicable state
securities laws, or with covenants or representations made by the Company in
connection with any public offering of its Common Stock.

      (b) Compliance With Securities Laws. Each option shall be subject to the
requirement that if, at any time, counsel to the Company shall determine that
the listing, registration or qualification of the shares subject to such option
upon any securities exchange or under any state or federal law, or the consent
or approval of any governmental or regulatory body, or that the disclosure of
non-public information or the satisfaction of any other condition is necessary
as a condition of, or in connection with, the issuance or purchase of shares
thereunder, such option may not be exercised, in whole or in part, unless such
listing, registration, qualification, consent or approval, or satisfaction of
such condition shall have been effected or obtained on conditions acceptable to
the Board of Directors. Nothing herein shall be deemed to require the Company to
apply for or to obtain such listing, registration or qualification, or to
satisfy such condition.

14. Rights as a Shareholder.

     The holder of an option shall have no rights as a shareholder with respect
to any shares covered by the option (including, without limitation, any rights
to receive dividends or non-cash distributions with respect to such shares)
until the date of issue of a stock certificate to him or her for such shares. No
adjustment shall be made for dividends or other rights for which the record date
is prior to the date such stock certificate is issued.

15. Adjustment Provisions for Recapitalizations and Related Transactions.

      (a) General. If, through or as a result of any merger, consolidation, sale
of all or substantially all of the assets of the Company, reorganization,
recapitalization, reclassification, stock dividend, stock split, reverse stock
split, or other similar transaction, (i) the outstanding shares of Common Stock
are increased or decreased or are exchanged for a different number or kind of
shares or other securities of the Company, or (ii) additional shares or new or
different shares or other securities of the Company or other non-cash assets are
distributed with respect to such shares of 


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<PAGE>

Common Stock or other securities, an appropriate and proportionate adjustment
may be made in (x) the maximum number and kind of shares reserved for issuance
under the Plan, (y) the number and kind of shares or other securities subject to
then outstanding options under the Plan, and (z) the price for each share
subject to any then outstanding options under the Plan, without changing the
aggregate purchase price as to which such options remain exercisable, provided
that no adjustment shall be made pursuant to this Section 15 if such adjustment
would cause the Plan to fail to comply with Section 422 of the Code or with Rule
l6b-3.

      (b) Board Authority to Make Adjustments. Any adjustments under this
Section 15 will be made by the Board of Directors, whose determination as to
what adjustments, if any, will be made and the extent thereof will be final,
binding and conclusive. No fractional shares will be issued under the Plan on
account of any such adjustments.

16. Merger, Consolidation, Asset Sale, Liquidation, Etc.

      (a) General. In the event of a consolidation or merger or sale of all or
substantially all of the assets of the Company in which outstanding shares of
Common Stock are exchanged for securities, cash or other property of any other
corporation or business entity or in the event of a liquidation of the Company,
the Board of Directors of the Company, or the board of directors of any
corporation assuming the obligations of the Company, may, in its discretion,
take any one or more of the following actions, as to outstanding options: (i)
provide that such options shall be assumed, or equivalent options shall be
substituted, by the acquiring or succeeding corporation (or an affiliate
thereof), provided that any such options substituted for Incentive Stock Options
shall meet the requirements of Section 425(a) of the Code, (ii) upon written
notice to the optionees, provide that all unexercised options will terminate
immediately prior to the consummation of such transaction unless exercised by
the optionee within a specified period following the date of such notice, (iii)
in the event of a merger under the terms of which holders of the Common Stock of
the Company will receive upon consummation thereof a cash payment for each share
surrendered in the merger (the "Merger Price"), make or provide for a cash
payment to the optionees equal to the difference between (A) the Merger Price
times the number of shares of Common Stock subject to such outstanding options
(to the extent then exercisable at prices not in excess of the Merger Price) and
(B) the aggregate exercise price of all such outstanding options in exchange for
the termination of such options, and (iv) provide that all or any outstanding
options shall become exercisable in full immediately prior to such event.

      (b) Substitute Options. The Company may grant options under the Plan in
substitution for options held by employees of another corporation who become
employees of the Company, or a subsidiary of the Company, as the result of a
merger or consolidation of the employing corporation with the Company or a
subsidiary of the Company, or as a result of the acquisition by the Company, or
one of its subsidiaries, of property or stock of the employing corporation. The
Company may direct that substitute 


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<PAGE>

options be granted on such terms and conditions as the Board of Directors
considers appropriate in the circumstances.

17. Change in Control.

      Notwithstanding any other provision of the Plan and except as otherwise
provided in the relevant option agreement, in the event of a "Change in Control
of the Company" (as defined below), the exercise dates of all options then
outstanding shall be accelerated in full and any restrictions on exercising
outstanding options issued pursuant to the Plan prior to any given date shall
terminate. For purposes of the Plan, a "Change in Control of the Company" shall
occur or be deemed to have occurred only if (i) any "person," as such term is
used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934, as
amended (the "Exchange Act") (other than the Company, any trustee of other
fiduciary holding securities under an employee benefit plan of the Company, or
any corporation owned directly or indirectly by the stockholders of the Company
in substantially the same proportion as their ownership of stock of the
Company), is or becomes the "beneficial owner" (as defined in Rule 13d-3 under
the Exchange Act), directly or indirectly, of securities of the Company
representing 25% or more of the combined voting power of the Company's then
outstanding securities; (ii) during any period of two consecutive years ending
during the term of the Plan (not including any period prior to the adoption of
the Plan), individuals who are the beginning of such period constitute the Board
of Directors of the Company, and any new director (other than a director
designated by a person who has entered into an agreement with the Company to
effect any transaction described in clause (i), (iii), or (iv) of this Section
17) whose election by the Board of Directors or nomination for election by the
Company's shareholders was approved by a vote of at least two-thirds of the
directors then still in office who were either directors at the beginning of the
period or whose election or whose nomination for election was previously so
approved (collectively, the "Disinterested Directors"), cease for any reason to
constitute a majority of the Board of Directors; (iii) the shareholders of the
Company approve a merger or consolidation of the Company with any other
corporation, other than (A) a merger or consolidation which would result in the
voting securities of the Company outstanding immediately prior thereto
continuing to represent (either by remaining outstanding or by being converted
into voting securities of the surviving entity) more than 80% of the combined
voting power of the voting securities of the Company or such surviving entity
outstanding immediately after such merger or consolidation or (B) a merger or
consolidation effected to implement a recapitalization of the company (or
similar transaction) in which no "person" (as hereinabove defined) acquires more
than 25% of the combined voting power of the Company's then outstanding
securities; or (iv) the shareholders of the Company approve a plan of complete
liquidation of the Company or an agreement for the sale or disposition by the
Company of all or substantially all of the Company's assets.


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<PAGE>

18. No Special Employment Rights.

      Nothing contained in the Plan or in any option shall confer upon any
optionee any right with respect to the continuation of his or her employment by
the Company or interfere in any way with the right of the Company at any time to
terminate such employment or to increase or decrease the compensation of the
optionee.

19. Other Employee Benefits.

      The amount of any compensation deemed to be received by an employee as a
result of the exercise of an option or the sale of shares received upon such
exercise will not constitute compensation with respect to which any other
employee benefits of such employee are determined, including, without
limitation, benefits under any bonus, pension, profit-sharing, life insurance or
salary continuation plan, except as otherwise specifically determined by the
Board of Directors.

20. Amendment of the Plan.

      (a) The Board of Directors may at any time, and from time to time, modify
or amend the Plan in any respect, except that if at any time the approval of the
shareholders of the Company is required as to such modification or amendment
under Section 422 of the Code or any successor provision with respect to
Incentive Stock Options or under Rule l6b-3 or any successor provision with
respect to options held by Reporting Persons, the Board of Directors may not
effect such modification or amendment without such approval.

      (b) The termination or any modification or amendment of the Plan shall
not, without the consent of an optionee, affect his or her rights under an
option previously granted to him or her. With the consent of the optionee
affected, the Board of Directors may amend outstanding option agreements in a
manner not inconsistent with the Plan. The Board of Directors shall have the
right to amend or modify (i) the terms and provisions of the Plan and of any
outstanding Incentive Stock Options granted under the Plan to the extent
necessary to qualify any or all such options for such favorable federal income
tax treatment (including deferral of taxation upon exercise) as may be afforded
incentive stock options under Section 422 of the Code and (ii) the terms and
provisions of the Plan and of any outstanding option to the extent necessary to
ensure the qualification of the Plan under Rule l6b-3 or any successor rule.

21. Withholding.

      (a) The Company shall have the right to deduct from payments of any kind
otherwise due to the optionee any federal, state or local taxes of any kind
required by law to be withheld with respect to any shares issued upon exercise
of options under the Plan. Subject to the prior approval of the Company, which
may be withheld by the Company in its sole discretion, the optionee may elect to
satisfy such obligations, in whole or in part, (i) by causing the Company to
withhold shares of Common Stock otherwise issuable pursuant to the exercise of
an option or (ii) by delivering to the Company shares of Common Stock already
owned by the optionee. The shares so 


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delivered or withheld shall have a fair market value equal to such withholding
obligation. The fair market value of the shares used to satisfy such withholding
obligation shall be determined by the Company as of the date that the amount of
tax to be withheld is to be determined. An optionee who has made an election
pursuant to this Section 21(a) may only satisfy his or her withholding
obligation with shares of Common Stock which are not subject to any repurchase,
forfeiture, unfulfilled vesting or other similar requirements.

      (b) Notwithstanding the foregoing, in the case of a Reporting Person, no
election to use shares for the payment of withholding taxes shall be effective
unless made in compliance with any applicable requirements of Rule l6b-3(e) or
any successor rule under such Act.

22. Cancellation and New Grant of Options, Etc.

      The Board of Directors shall have the authority to effect, at any time and
from time to time, with the consent of the affected optionees, (i) the
cancellation of any or all outstanding options under the Plan and the grant in
substitution therefor of new options under the Plan covering the same or
different numbers of shares of Common Stock and having an option exercise price
per share which may be lower or higher than the exercise price per share of the
cancelled options or (ii) the amendment of the terms of any and all outstanding
options under the Plan to provide an option exercise price per share which is
higher or lower than the then-current exercise price per share of such
outstanding options; provided, that in the case of a Reporting Person, the
exercise price of options substituted or amended in the manner described above
shall not be less than 50% of the fair market value of the underlying stock at
the time of such substitution or amendment.

23. Effective Date and Duration of the Plan.

      (a) Effective Date. The Plan shall become effective when adopted by the
Board of Directors, but no option granted under the Plan shall become
exercisable unless and until the Plan shall have been approved by the Company's
shareholders. If such shareholder approval is not obtained within twelve months
after the date of the Board's adoption of the Plan, no options previously
granted under the Plan shall be deemed to be Incentive Stock Options and no
Incentive Stock Options shall be granted thereafter. Amendments to the Plan not
requiring shareholder approval shall become effective when adopted by the Board
of Directors; amendments requiring shareholder approval (as provided in Section
20) shall become effective when adopted by the Board of Directors, but no
Incentive Stock Option issued after the date of such amendment shall become
exercisable (to the extent that such amendment to the Plan was required to
enable the Company to grant such Incentive Stock Option to a particular
optionee) unless and until such amendment shall have been approved by the
Company's shareholders. If such shareholder approval is not obtained within
twelve months of the Board's adoption of such amendment, any Incentive Stock
Options granted on or after the date of such amendment shall terminate to the
extent that such amendment to the


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Plan was required to enable the Company to grant such option to a particular
optionee. Subject to this limitation, options may be granted under the Plan at
any time after the effective date and before the date fixed for termination of
the Plan.

      (b) Termination. Unless sooner terminated in accordance with Section 16,
the Plan shall terminate, with respect to Incentive Stock Options, upon the
earlier of (i) the close of business on the day next preceding the tenth
anniversary of the date of its adoption by the Board of Directors, or (ii) the
date on which all shares available for issuance under the Plan shall have been
issued pursuant to the exercise or cancellation of options granted under the
Plan. Unless sooner terminated in accordance with Section l6, the Plan shall
terminate with respect to options which are not Incentive Stock Options on the
date specified in (ii) above. If the date of termination is determined under (i)
above, then options outstanding on such date shall continue to have force and
effect in accordance with the provisions of the instruments evidencing such
options.

24. Provision for Foreign Participants.

      The Board of Directors may, without amending the Plan, modify awards or
options granted to participants who are foreign nationals or employed outside
the United States to recognize differences in laws, rules, regulations or
customs of such foreign jurisdictions with respect to tax, securities, currency,
employee benefit or other matters.

      Adopted by the Board of Directors on June 2, l993, and approved by the
Company's shareholders at Special Meeting in Lieu of an Annual Meeting on August
5, 1993. Amended by the Board of Directors on July 14, 1994. Approved and
ratified by shareholders at Annual Meeting on August 17, 1995 and amended by the
Board of Directors on April 29, 1997, and approved by shareholders at the Annual
Meeting on August 15, 1997.