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.

Reading PDFs on the iPad can be way better than what you get from Apple's Books app. These are the best apps to use for reading at PDF files on your iPad, or even your iPhone.

PDFs are ubiquitous, but aren't always the easiest to edit. Check out our picks for the best PDF editors to edit and sign your documents seamlessly.

LibreOffice can handle all kind of files, including PDFs you might be working on. Here's how to set up a PDF in LibreOffice and edit it.

A PDF — which stands for Portable Document Format — is an open standard document file extension created by Adobe. It has gained popularity in recent years because of the ease of use it affords ...

Export any document in your Drive account as a PDF and sync it back to Drive. Google Drive enables you to export any file to PDF.

Excel gives you tons of options for editing, but what if your file is a PDF? Here's how to convert a PDF into an Excel file with ease. Just follow these steps.