How to sign a PDF on your Android phone or tablet, without having to print or scan

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

Your Android phone can now fix document scans before you even know it

Google now automatically enhances document scans on Android phones using MLKit. The enhancement is seamless, reducing the need for manual adjustments after scanning. Auto-enhancement is available on ...