I have multiple digitally signed PDF payslips from my ex employer, and I want to merge them together into one. I don't care about the signatures: either retaining them or signing the merged document.
I'm using KDE Neon, with the default document viewer Okular and PDFChain (GUI for pdftk) to merge them. PDFChain wont merge signed documents.
One way forward is to print each file to PDF and then merge the resulting unsigned PDFs, but the printed PDF from Okular is huge (10KB -> over 500 KB, multiplied by around 20 files in all).
So is there a way to either:
- Print to pdf more efficiently, without the bloat in file size (Okular's PDF print settings aren't making any changes to the source that I can see, i.e. same formatting and margins as the original)
- strip the signatures using any other tool?
I'm looking for any suggestions - be it tweaks to Okular's printing, or a separate tool altogether. Should also add I'm using KDE Plasma 6.