One great thing about Google Docs is that you can conveniently add a PDF to an existing document in four distinct ways.

Just like how you add inked signatures on a hard-paper document, you can also add an electronic signature to your PDF document in the Edge browser.

How to add text to a PDF on a Mac, modify a PDF Once you have the PDF document open in Preview (or Quick Look), try clicking in the space where the PDF indicates you should enter some data.

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.

How the creator of a PDF file sets up her document determines the extent to which you can use Acrobat Reader's commenting tools to mark the file with notes about its content.

How to Add a PDF Printer to Windows. The PDF (Portable Document Format) file type is useful for a wide variety of business situations. It enables companies to create documents in which fonts ...

Need to edit a PDF document for free? Don't worry, we've put together a couple of easy-to-follow shortcuts.

Topline Portable Document Format files, or PDFs, are easily presented and exchanged across softwares—even Word—so here’s how to convert a PDF into a Microsoft Word document.

Have a PDF you need to edit more easily? Here are a few options for converting, plus some security advice.