You can digitally sign a PDF in several different ways, including Adobe Acrobat, Apple's Preview app, and mobile apps, among other options.

E-sign or electronic signature is an electronic identification method for verifying one’s identity. It eliminates the need for in-person presence and allows users to sign documents remotely. IMAGE: ...

Tired of printing, signing and then scanning or faxing documents that need your signature? Signing Word and PDF documents electronically on your phone or computer is easy, even if you don't have a ...

How to sign PDF documents on your iPhone For iPhone users, one of the easiest ways to sign a PDF document is to use the tools built into the Mail app. When you receive an attachment, tap to download ...

Free software on your phone or tablet lets you scan, create, edit, annotate and even sign digitized documents on the go.