Where that's good, I don't know..nobody seems to care telling.
> Clean-room.
> * Never read, disassemble or copy anything inside the Acrobat bundle (names and listings only). Never open Contents/Resources/JavaScripts/.
> * Behaviour comes from public docs, specs (ISO 32000-2, the Arlington model) and black-box observation (plan/acrobat/).
> * Never copy GPL/AGPL code. MuPDF, Ghostscript, Poppler, veraPDF and DSS run only as external oracle processes.
> * See plan/README.md §Clean-room and plan/adr/0001.
It really looks like they have AI running Adobe (and other apps) as sources of truth and have rules against disassembly or including source from GPL projects which left me pondering the ethics of it.
[1] https://github.com/storytold/pdfcraft/blob/main/CLAUDE.md
I only came across it recently as it's trending. I had no idea they had already started developing adobe apps clones for so many years