If you are wondering how to annotate a PDF on Windows, you can use free online tools and software that we have included in this article.

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.

To edit a PDF file on your Android for free, you can use the Adobe Acrobat Reader: Edit PDF app. While you can’t modify existing text or images with a free account, you can add new text ...

There are many alternatives when it comes to editing a PDF, but the best bet is usually to just use Adobe Acrobat on your computer or mobile device.

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.

You can find free PDF editors on the internet, but their most important features tend to be behind a paywall. Here we recommend five free PDF editors.

If you need to edit PDF on iPhone in a hurry, you can do so without having to install any new app. Just use the native Files app. Let's show you how.