Stamp PDF Documents with Acrobat CS5 Stamp Tool
You can easily stamp a document in Adobe Acrobat Creative Suite 5 by using the Stamp Tool in the Comment & Markup toolbar, which you can access by clicking the Comment option in the Tasks toolbar. You can then choose Show the Comment & Markup Tools.
You can also access the Comment & Markup toolbar by choosing View→ Toolbars→Comment & Markup.

Common stamps include Confidential, Draft, Sign Here, and Approved. The stamps are grouped into sections. Some stamps automatically add your default username along with the date and time you applied them to the document; these stamps are available under the Dynamic category in the Stamps menu.
The more traditional business stamps, such as Confidential, appear under the Standard Business category. You can access each of the different categories by clicking the arrow to the right of the Stamp tool in the Comment & Markup toolbar.

To apply a stamp to your document, follow these steps:
Select the Stamp tool from the Comment & Markup toolbar.
Click the arrow to the right of the Stamp tool and from the menu, choose the stamp you want to apply to the document.
Drag within your document at the location where you want the stamp to appear.









