[wellylug] How to electronically modify a PDF to fax from GNU/Linux?

[Damon Lynch]

Hi,

I need to add my signature and check a box on a PDF document, and fax
it.  Although it's easy to fax within GNU/Linux, I don't have a scanner
(but I do have a scan of my signature); hence I want to electronically
alter the image that will be faxed.

One "brute force" method I can use is to take a screen shot and edit the
image in the Gimp.  Is there a more elegant way?

Thanks
Damon