Need to make notes in a PDF, or perhaps correct a few typos or reorganize the pages? Here are the tools and tips you need.

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.

You’ll only need to sign up for a free account, which allows you to convert PDFs to a number of different file formats as well as merge, split, delete, reorder, extract and insert new PDF pages.

Need to sign an e-mailed PDF document? Going through the motions of printing, signing, and scanning the document is tedious. Fortunately, there's a faster way to go about this process.

If a signature is not validated in a PDF, we see Validity unknown with a question mark. You need to validate the signature to make it valid.

Creating PDF files is a fundamental skill useful for various purposes, from sharing documents to preserving formatting across ...

If you want to sign a PDF, this post talks of free tools that let you add a signature to PDF. Type or draw a signature using them.

It’s worth knowing how to save a Word document as a PDF, especially if you need to share your creations with contacts and colleagues. Unlike Word’s default DOCX file type, PDFs don’t require ...

To send PDF to Amazon Kindle devices, you're going to need to know your Kindle's email address. Head to the Amazon website and sign in first.

You can add your signature to PDF documents by using Apple, Android or PCs. Kurt "CyberGuy" Knutsson shows you how to add e-signatures using your devices.