1. Go to the page where you want to add PDF stamp(s).
2. Tap the “Stamp” icon on the annotation toolbar and you will see a list of built-in stamps.
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.
△ Attention: Files within the "Inbox" folder are not allowed to be annotated. Please move the files to other folders to annotate them. △
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