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 ...

Portable Document Format (PDF) is a common format for sharing final versions of files. The format is most used for viewing and not editing. But if you need to edit PDF files, Microsoft Word brings ...

For users who prefer free and open-source solutions, there are several tools available that can efficiently merge PDF files without the need for commercial software. One of the simplest command-line ...