Add a stamp to a PDF in Adobe Acrobat
helpx.adobe.com › acrobat › usingSep 6, 2022 · Open the Stamps palette Do one of the following: Choose Tools > Stamp > Stamps Palette. Choose Tools > Comment > Stamps > Show Stamps Palette. Apply a stamp Select a stamp by doing one of the following: Click the Stamp tool. The most recently used stamp is selected. In the Stamps Palette, choose a category from the menu, and then select a stamp.