this post was submitted on 30 Aug 2023
1401 points (97.5% liked)

Technology

58137 readers
4485 users here now

This is a most excellent place for technology news and articles.


Our Rules


  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots


founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 2 points 1 year ago (1 children)

Xournal++ is old, but it can directly write on PDFs with both pen tablet and scanned image insertion, and can probably add/remove/reorder pages too— Technically I think its file format links to/embeds the whole PDF file, and then probably exports a new one with stuff added on top, or something like that, but the end result is usually that you can directly edit the PDF.

Or do you mean some kind of cryptographic signing? Well, it looks like Adobe offers a webtool too?

[–] [email protected] 3 points 1 year ago

I meant tamper-proof cryptographic signatures, yes. A webtool is absolutely out of the question if you consider that it means uploading your potentially confidential document to an enterprise like Adobe.