Comment by Osiris
4 years ago
If you have a PDF editor that can save a PDF/A (archive PDF), it'll convert the whole document into an image. So, I just paste in my signature and export as a PDF/A and from their perspective it's just a single image like it was scanned.
PDF/A does not turn everything into an image. It is just a more restricted version of the PDF format, and it still has text, embedded fonts, etc.
The image conversion might be a separate feature in your PDF editor.