Toolbar choose Comment > Text Markup > Stamp
In the stamps palette, select a stamp.
Click the document page where you want to place the stamp, or drag a rectangle to define the size and placement of the stamp.
To move a stamp, using the Select tool or the Hand tool, drag it to a new location.
To resize a stamp, using the Select tool or the Hand tool, click it, drag a corner handle.
To delete a stamp, right-click the stamp and choose Delete.
To change the stamp's opacity or the color of its pop-up note, right-click the stamp, and choose Properties. In the properties form, set the opacity or color.
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