I need to password-protect a 12-page contract on my Android phone before emailing it, and I only have the built-in viewer. Is encrypting a PDF actually possible from a phone?
Honestly, the built-in viewer won’t do it, but it’s defintely possible on Android. Simplest way is grabbing the free Adobe Acrobat app or using a browser tool like PDF24 to add the password. I do this with contracts from my phone all the time.