This case originates from litigation heard in the United States District Court for the Central District of California, focusing on unauthorized resale and secondary modification of original commercial 3D printable digital models, a typical cross-border digital copyright dispute frequently encountered by Chinese sellers operating on Etsy and Amazon Marketplace. All real corporate identities are replaced with pseudonyms in accordance with requirements: the copyright claimant is Nova Digital Studio, and the alleged infringer is Pacific Cross Trading LLC. The judgment interprets fair use standards and secondary liability under the U.S. Copyright Act of 1976, delivering critical references for cross-border merchants engaging in digital file transactions.
Nova Digital Studio is a creative enterprise founded by independent designers, specialising in developing 3D model files for handicraft decoration. Between February and April 2024, its design team independently completed a series of 42 original 3D stereoscopic models suitable for 3D printing. The studio completed formal copyright registration with the U.S. Copyright Office and retained layered source files, design sketches, version iteration logs and blockchain evidence preservation records. These digital resources were licensed to global merchants via official channels under clear terms: buyers obtain only non-transferable, non-exclusive commercial authorisation for physical product manufacturing. License agreements explicitly prohibit re-uploading, sublicensing, decompiling or reselling original digital model files to third parties.
In September 2024, Nova Digital’s intellectual property monitoring team discovered that Pacific Cross Trading LLC operated multiple storefronts on Etsy. The company publicly sold compressed packages containing highly analogous 3D model files at low prices to global buyers. After technical comparison, 37 works in the defendant’s commodity package directly replicated the core structural design of Nova’s original models. Pacific Cross Trading implemented minor adjustments including partial size scaling and surface texture replacement to evade automated platform content detection. The infringer continuously gained revenue for several months by supplying low-cost digital resources to small 3D printing workshops worldwide.
The rights holder first issued a formal DMCA takedown notice to the Etsy platform and delivered a cease-and-desist lawyer’s letter to Pacific Cross Trading LLC. The claimant demanded immediate removal of all infringing commodity links, permanent deletion of pirated digital files and compensation for economic losses. Nevertheless, Pacific Cross Trading refused settlement and put forward two core legal defences. First, the company claimed it purchased digital resources from an anonymous overseas supplier and acted as an innocent intermediary without subjective infringement intent. Second, the defendant asserted that scaling and texture revision constituted original derivative works protected by copyright law, and such modification activities fell within the scope of fair use.
After negotiation efforts failed, Nova Digital Studio initiated federal civil litigation. The plaintiff requested the court to order Pacific Cross Trading to terminate all infringement activities, delete all pirated digital models, and compensate economic losses plus reasonable rights-protection expenditures such as notarisation fees, technical appraisal fees and attorney fees.
During the court hearing, the judge adopted the standard four-factor test to judge fair use established by U.S. federal judicial precedent. The core controversy focused on whether the defendant’s modifications created new transformative expression. Professional technical examiners contrasted the original source files submitted by the plaintiff and the digital resources circulated by the defendant. The appraisal conclusion confirmed that core shape structure, overall proportion and creative conception remained basically unchanged. Simple scaling and texture replacement only brought trivial technical adjustment and failed to form substantial new creative content. Such alteration cannot satisfy the threshold of derivative works under 17 U.S.C. § 101 and cannot be recognised as lawful fair use.
Regarding the “innocent intermediary” defence raised by Pacific Cross Trading LLC, the court held that the defendant specialised in selling downloadable digital design files online. As a professional operator in the digital goods industry, the enterprise bore a higher obligation to verify the legitimacy of commodity copyright sources. The defendant could not provide valid licensing contracts, designer information or complete traceable procurement records. The judge ruled that the defendant failed to perform reasonable review obligations; therefore, the innocent infringement defence was not accepted.
In May 2025, the district court issued the first-instance judgment. The court confirmed that Pacific Cross Trading LLC infringed Nova Digital Studio’s exclusive reproduction right and exclusive distribution right under the U.S. Copyright Act. The defendant was ordered to delete all infringing digital files, remove all online sales listings, and pay total compensation of USD 96,500, covering economic losses and all reasonable litigation costs. The infringer chose not to file an appeal within the statutory period, and the judgment has taken full legal effect.
This case delivers multiple practical lessons for cross-border operators. First, U.S. copyright registration greatly strengthens evidentiary weight in federal court litigation, and continuous preservation of original creation materials is essential for successful rights enforcement. Second, superficial technical adjustments to digital works cannot evade copyright liabilities; only secondary creation adding significant transformative elements may constitute eligible derivative works. Third, merchants engaged in digital file sales cannot rely on vague procurement records to claim innocent status. For Chinese cross-border sellers trading 3D models, templates, artwork and other digital products on American e-commerce platforms, systematic copyright source verification must be embedded into daily supply chain management to prevent similar litigation risks.
1.IPcrossark：https://www.ipcrossark.com/en/trademark.html?cid=54
2.Official United States Copyright Office Website: https://www.copyright.gov
3.Stanford Fair Use Center Professional Case Database: https://fairuse.stanford.edu
4.WIPO Lex Full Text of U.S. Copyright Act: https://www.wipo.int/wipolex/en/text/17498
