Learn how to add page numbers to PDF files using free online tools or PC software. You can set position, font, etc., for page numbering.

Different formats can also make managing several documents cumbersome. Combining these documents into a single PDF file may be helpful for personal or professional use, to deliver simplified, ...

No matter your operating system, knowing how to combine PDF files is a good skill. We'll teach you the best ways to do so for Windows, macOS, or via the web.

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.

Sometimes a PDF needs encryption. Sometimes it doesn't. Here's how and when you can remove unneeded encryption.