If you have a PDF that you want to share with the world via Facebook, you might hit a snag. You simply can't upload that file type to Facebook as a photo. Thankfully, there are a few ways around that ...

A watermark is a semi-transparent image that usually contains a logo or seal to identify who created a document or image. If you want to watermark a PDF file, you can either insert the watermark into ...

Gimp is normally used to create or manipulate images files, but can also work with PDFs if you understand how it works and what it's limits are. If you’ve never used Gimp—a free image editor available ...