Adobe Acrobat enables you to create PDF documents that are compatible with virtually every operating system and platform. PDF documents also support a wide range of security features. To send a ...

We get documents in PDF format from the government or other agencies. Some documents come with digital signatures placed on the pages. If they are already validated, we see a Signature Valid message ...

This PDF e-signing post is in collaboration with Smallpdf. When you sign up to use Smallpdf’s eSign PDF tool, you can create signatures and initials, sign documents electronically, and invite other ...

If you already have a PDF that you’d like to sign, double-click on it to open it in Preview. Then click on the Pen icon near the top right, select the Sig icon, and choose “Create Signature from Built ...

Posts from this topic will be added to your daily email digest and your homepage feed. is a reviews editor who manages how-tos and various projects. She’s worked as an editor and writer (and ...

Researchers at the Ruhr-University Bochum in Germany have figured out three different ways to forge digital signatures in PDF documents. The fakes will be treated as genuine on 21 of 22 desktop PDF ...