Before you start
A PNG stamp is a graphic. Putting it on a PDF changes the document’s appearance, but the image alone does not authenticate the signer, establish authority or prove the file has not been altered. StampCanvas is a design and annotation tool.
How to use it
Use the editor for visual designs and the image or PDF tool for placement. If a recipient requires identity verification, a signing certificate or a tamper-evident signature, use an appropriate signing service and confirm the recipient’s requirements separately.