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 sign a PDF in Google Drive using the Drawings tool in Google Docs and third-party add-ons such as DocHub and Adobe Acrobat.

Do you share PDF files with other people? Here's how to password protect a PDF on Windows for protection against unauthorized access, editing, and printing.

This how-to guide will show you how to create an electronic signature and use it to sign a PDF file in Windows, MacOS, Android or iOS.

Need more PDF help? Check out our tips on how to easily sign PDFs and four free apps for better PDF editing. How to combine PDFs on Windows ...