Back in 1992, Adobe created the Portable Document Format file, now commonly known as the PDF and used to distribute everything from digital business documents to e-books. This Adobe file type isn't ...

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 ...

Editing PDFs is something many people need to do, but unfortunately it’s not always the easiest thing to do. The format is not designed to be easily edited, and despite a plethora of Windows and web ...