On: PDF Forgeries Are Surprisingly Rare (2022)

[slybot]

PDF's are not Presentation Document Format. Should be "Portable".

[ozim → slybot]

Main point of parent still stands - PDF's are not meant to be edited one should generate new from the source material and that's it.

[marysol5 → slybot]

They're "portable" in that they can be "universally" read. Not that you can create and manage them.