1. Go to the page where you would like to add PDF stamp(s).
2. Tap the “Toolbox” icon on the bottom annotation toolbar and go to the stamp tab.
Alternatively, press and hold anywhere on the PDF to see the pop-up menu. Click "Stamp."
3. Tap the stamp you need and tap an area on the page to input the stamp.
4. Tap the stamp to edit it. You can resize, move or delete the stamp.
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