PDF Reader Pro provides you the best signing experience on Android.

 1. Enter the reading page, and tap  ; 

 2. Click + to create a new signature;

 3. Now you can create a beautiful handwritten signature; Or you can add an image signature by tapping  ;

 4. Then click Done, select the signature and insert it in an appropriate place in the PDF;

 5. If you want to delete the signature, just click it and choose Delete from the pop-up menu or click and choose Clear Signature.