PDF files are text-based documents that can include links, photographs and other media. They're typically opened with Adobe Acrobat or as read-only files in Adobe Reader. Adobe Acrobat includes ...

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 ...

The PDF file format has great support for text and video, as well as an efficient file size, making it a great format for all kinds of documents and data. It’s also excellent for preserving the ...