Setp One : Import Your Stamps

Step Two: Make Stamps for a Picture

Step Three: Make Stamps for a PDF File

How to Use
Open Document: Menu → File → Open Document, or click the "Open Document" toolbar button
Import Stamp: Left panel → "Import Stamp", select a PNG image (transparent background recommended)
Stamp: Click a stamp in the library; it will appear at the center of the document page
Move: Drag the stamp to the desired position
Resize / Rotate: Set rotation angle and scale in the top toolbar, then click "Apply to Selected"
Cross-page Stamp: With a PDF open, select a stamp on the left, click "Cross-page Stamp…" in the toolbar and follow the wizard
Supports sizing by stamp scale percentage (relative to original stamp size) or fixed height (pt)
Clear Stamps: Menu → Stamp → Clear All Stamps
Save: Menu → File → Save Stamped Document, choose an export path
Register: Menu → Help → Register…, enter your license key to activate