To properly sign a PDF on your Android phone or tablet, you'll need to download an app from the Google Play Store.

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 ...

For some of us, our phone is our primary computer -- and that means printing the occasional document from your mobile device. Whether it's a spreadsheet or a travel itinerary, sometimes it's just ...

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 ...

There are lots of things I hated about my university experience, but having to occasionally browse PDF files straight from my phone is certainly up there. Fortunately, though, future generations won’t ...