PDF4QT is an open source PDF editor for Windows/Linux. This modern solution offers an unparalleled experience for viewing, editing, and rendering PDF documents.
It’s pretty limited, and not exactly editing but rather markup (you can do things like add a text box or image, add signature, check boxes, highlight).
You can’t cut things out of the original, or move elements around that you haven’t added yourself. It’s usually sufficient for my needs.
I use LibreOffice to change PDF files. I’m not a heavy user, but for my needs that worked like a charm so far.
How does it compare to Firefox? I don’t do much with PDFs either and FF has been sufficient for my needs.
how do you modify a pdf using firefox?
You just open it in Firefox and modify it. It’s only form filling for now.
It’s pretty limited, and not exactly editing but rather markup (you can do things like add a text box or image, add signature, check boxes, highlight). You can’t cut things out of the original, or move elements around that you haven’t added yourself. It’s usually sufficient for my needs.
I didn’t even know that Firefox allows changing PDFs, so I can’t comment on this, sorry.