To properly sign a PDF on your Android phone or tablet, you'll need to download an app from the Google Play Store.
You can download a Google Docs file from a computer or mobile device and select the appropriate format for your file.
The Preview app for iPhone is a new addition in iOS 26. Find out what it can do and how it can improve your workflow.
WhatsApp’s built-in document scanner lets you digitize paper documents into PDFs directly from a chat on Android or iPhone, ...