PDF signing is the bane of my existence, luckily I can get by with a cloud solution but it's nowhere near how easy I wish it would be. Sadly I'm still forced to use a Windows VM or dual-boot because the tax authority in my country requires a root/digital certificate for login to their web system, at least for incorporated entities.
I can find a dozen solutions to sign a PDF on linux without much trouble. Now redacting seems a whole nother story.
I've failed to find even a single option on linux that does real PDF redaction like adobe acrobat. Most don't do redaction at all or worse they say they redact but it's actually just black highlighter on black text or some other kind of overlay that leaves the underlying text data intact.
Thanks for the tip, it might work if I can figure out where the certificate is stored on Windows because I am forced to go through an application first.