Habana vs. Robles

The Court held that copying substantial portions of another's copyrighted work without acknowledging the source constitutes copyright infringement, even if the subject matter derives from common sources or public domain topics, because the failure to attribute the source violates the statutory fair use limitation requiring that the source and the author be mentioned.

Petitioners authored and copyrighted College English for Today (CET), Books 1 and 2, and an accompanying workbook. Respondent Felicidad C. Robles authored Developing English Proficiency (DEP), Books 1 and 2, which respondent Goodwill Trading Co., Inc. published and distributed. Upon examining DEP, petitioners discovered that its contents, scheme of presentation, illustrations, and examples were strikingly similar to CET. Petitioners demanded that respondents cease selling DEP and recall existing copies, but respondents refused.

• The Works: Petitioners authored and held copyright over College English for Today (CET). Respondent Robles authored Developing English Proficiency (DEP), which respondent Goodwill Trading Co., Inc. published.
• Discovery of Similarities: While revising their work, petitioners discovered that DEP was strikingly similar to CET. An itemized comparison revealed identical textual contents, illustrations, and examples.
• Specific Instances of Copying: Page 73 of DEP contained identical examples of dates and addresses as page 404 of CET. Page 100 of DEP reproduced an Edmund Burke passage on parallelism found on page 250 of CET; however, while CET acknowledged Burke as the author, DEP did not. Numerous other pages demonstrated similar style, manner of presentation, and identical examples.
• Demand and Refusal: Petitioners demanded respondents cease selling DEP and recall copies. Respondents refused, claiming DEP was the product of independent research and that similarities resulted from adherence to the same APCAS syllabus and common foreign sources.
• Indicia of Guilt: Upon learning of the complaint, respondent Robles pulled out DEP from Goodwill bookstores. When DEP was re-issued as a revised version, all pages previously cited by petitioners as containing portions of CET were eliminated.

Petitioners maintained that respondents committed copyright infringement because DEP contained substantial textual, thematic, and sequential similarities to CET. Petitioners argued that respondent Robles possessed animus furandi by refusing to withdraw DEP from the market despite notice. Petitioners contended that respondent Robles abused the right to fair use under Section 11 of Presidential Decree No. 49 by failing to acknowledge petitioners as the source of the copied portions.

Respondent Robles countered that DEP was the product of her independent research and experience, not a copy of CET. She argued that similarities resulted from both authors following the APCAS syllabus and common standards for English grammar writers. She claimed that the copied portions were derived from foreign books and public domain sources. Goodwill Trading Co., Inc. argued it was not privy to the infringement, as Robles had guaranteed the originality of her manuscript.

• Procedural Issues: N/A
• Substantive Issues: Whether respondents committed copyright infringement despite apparent textual, thematic, and sequential similarity between DEP and CET; whether respondent Robles possessed animus furandi; whether respondent Robles abused a writer's right to fair use in violation of Section 11 of Presidential Decree No. 49.

• Procedural: N/A
• Substantive: The Court ruled that respondents committed copyright infringement. Substantial reproduction occurs when so much is taken that the value of the original work is substantially diminished or the original author's labors are appropriated to an injurious extent. The Court found numerous pages of DEP identical or highly similar to CET in style, presentation, and examples. The defense of common sources failed because identical examples cannot be justified merely by technical considerations or similar academic backgrounds. Furthermore, the fair use defense requires that the source and the name of the author be mentioned. Respondent Robles's failure to acknowledge petitioners as the source, coupled with her act of pulling out DEP upon learning of the complaint and eliminating the copied pages in the revised edition, established infringement and misappropriation of petitioners' intellectual product for commercial use.

• Substantial Reproduction / Injurious Appropriation — To constitute copyright infringement, it is not necessary that the whole or a large portion of the work be copied. If so much is taken that the value of the original is sensibly diminished, or the labors of the original author are substantially and to an injurious extent appropriated by another, that is sufficient to constitute piracy. The Court applied this doctrine to find that respondent's copying of substantial portions of CET, including identical examples and presentation, diminished the value of petitioners' work and constituted injurious appropriation.
• Fair Use Limitation (Attribution Requirement) — The making of quotations from a published work is allowed under fair use only to the extent justified for the purpose, provided that the source and the name of the author, if appearing on the work, are mentioned. The Court applied this principle to reject respondent's fair use defense, emphasizing that the failure to attribute the source of the copied materials negated the defense and established infringement.

• "If so much is taken that the value of the original work is substantially diminished, there is an infringement of copyright and to an injurious extent, the work is appropriated."
• "Infringement of a copyright is a trespass on a private domain owned and occupied by the owner of the copyright, and, therefore, protected by law, and infringement of copyright, or piracy, which is a synonymous term in this connection, consists in the doing by any person, without the consent of the owner of the copyright, of anything the sole right to do which is conferred by statute on the owner of the copyright."
• "A copy of a piracy is an infringement of the original, and it is no defense that the pirate, in such cases, did not know whether or not he was infringing any copyright; he at least knew that what he was copying was not his, and he copied at his peril."

• Columbia Pictures Inc. vs. Court of Appeals, 261 SCRA 144 — Followed for the principle that to constitute infringement, it is not necessary to copy the whole or a large portion of the work; sensible diminution of value or injurious appropriation is sufficient.
• Mazer v. Stein, 347 US 218 — Followed for the proposition that substantial reproduction does not require copying the entire work; diminution of value constitutes infringement.

• Section 177, Republic Act No. 8293 (Intellectual Property Code) — Defines the copy or economic rights of a copyright owner, including the exclusive right to reproduce the work or a substantial portion of it. The Court applied this provision to establish petitioners' exclusive right to their work and to find that respondent's copying violated this right.
• Section 184.1(b) and (e), Republic Act No. 8293 — Provides limitations on copyright, allowing quotations and inclusion of works for teaching purposes if compatible with fair use, provided the source and the name of the author are mentioned. The Court applied this provision to defeat respondent's fair use defense due to her failure to attribute the source.
• Section 11, Presidential Decree No. 49 — The prior copyright law under which the complaint was filed, containing similar fair use and attribution requirements. The Court noted that notwithstanding the change in the law, the same principles are reiterated in R.A. 8293.

Kapunan and Ynares-Santiago, JJ., concurred. Melo, J., took no part for personal reasons.

• Davide, Jr., C.J. — Filed a dissenting opinion (specific reasoning not provided in the text of the majority decision).