My own project. I wanted to merge, sign and redact contracts without handing them to iLovePDF or Smallpdf, so everything runs in your browser: no backend, the CSP blocks connections to other hosts, no analytics, no account. Redaction actually removes the text instead of covering it. Don’t want to trust the hosted copy? Self-host it with Docker or use the offline Windows app.
https://github.com/jurecki007/nyxiontech-tools https://tools.nyxiontech.com/
pdftkand Firefox about:pdf#features can do most that locallythe CLI version can be used in scripts and thus for automation
example of how I sign documents as a bash function :
pdftk "$1" stamp ~/Documents/UV_signature.pdf output "$1"_signed.pdfI mostly share to be able to compare with what already exists and is maintained, possibly without AI as they existed for a while.