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

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

There are two simple ways to remove the password from a PDF file, one of which works no matter what software you have.

Jon has been an author at Android Police since 2021. He primarily writes features and editorials covering the latest Android news, but occasionally reviews hardware and Android apps. His favorite ...

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