Developed 30 years ago by Adobe, the Portable Document Format, or PDF, is widely used around the globe for viewing and signing documents – everything from corporate annual reports and scientific ...

It’s been more than 25 years that PDF files have been around, and they’re not going anywhere anytime soon. As PDFs are the most popular format for presentations and document sharing, they are heavily ...

These days, you don't need an app just to view PDF files. Every web browser can do that. If you sometimes create PDF files out of Office documents, you probably use Adobe's Acrobat Reader. After all, ...

Tired of bloated PDFs tools? Okular is the best free Acrobat Reader alternative right now, offering fast performance, zero ads, full annotations, digital signatures, and support for multiple file ...

PDF-XChange Editor is has a boatload of features, for creating, editing, annotating, and securing PDF documents. The fully functional free versions offer plenty for many users, but you’ll have to pay ...