Add Image Watermark to PDF
Overlay transparent logos, draft stamps, or signature images onto your PDF documents. Adjust scaling, rotation, opacity, and choose tiling configurations securely in your browser.
Drag & drop your PDF file here
or click to browse your files. Documents process entirely client-side.
Key Features & Capabilities
100% Private & Local
Stamping calculations run entirely inside your browser. No files, logos, or documents are ever uploaded.
PNG Alpha Transparency
Supports overlay of transparent PNG logos, stamps, signatures, or badges cleanly on top of underlying text.
Repeated Grid Tiling
Configure repeated diagonal grids of images across your pages with adjustable spacings to secure copyrights.
Granular Scaling & Angle
Scale image sizes from 10% to 200%, rotate up to 180 degrees, and adjust layout opacity percentages seamlessly.
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Help us improve this tool!
Found a bug, want a new option, or have suggestions for Khmer Unicode formatting? Share your comments and help us improve.