3 ms·
background info if useful: PDF/A is a specification that limits what features of PDF are allowed. The purpose is to not allow features that may be problematic
by jimjimjim 4y ago
background info if useful:
PDF/A is a specification that limits what features of PDF are allowed. The purpose is to not allow features that may be problematic for archiving.
Initially PDF/A was really strict and prevented things like transparencies since they affected reproducibility when printing and embedded files etc.
Then people requested less restricted versions to allow more archiving use cases.
But even the newer less restrictive versions have a more well defined and verifiable specification than the main pdf specification.
- chasil 4y agoThe big restriction is that the classic Postscript typefaces are not available (no Times, Helvetica, or Zapf Dingbats), and the PDF file must bundle any fonts it uses. The pdfsizeopt package will make any PDF smaller, and I think it deletes letters/characters from the included font that are not used. https://github.com/pts/pdfsizeopt https://github.com/pts/pdfsizeopt