Add Watermark to PDF Document
Stamp documents with custom text, confidential tags, or company logos with real-time live preview and zero file uploads.
Select or Drop PDF Document
Add custom text stamps, confidential tags, or company logos with live preview. 100% private.
How to Watermark a PDF
Apply custom stamps in three quick steps
Select PDF Document
Upload or drop your file. It is rendered directly in your browser memory without being sent to any server.
Customize Your Stamp
Type text or upload a logo. Adjust rotation, font size, opacity, and color with real-time live preview.
Download Watermarked PDF
Click Apply & Download. Your document is generated with crisp vector quality and saved instantly.
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Frequently Asked Questions
How does adding a watermark to a PDF work on PDFCraft?▼
PDFCraft overlays your custom text or logo image directly onto each PDF page stream using local WebAssembly in your browser. You can tweak font size, opacity, color, angle (diagonal 45° or horizontal), and page target with real-time live preview — with zero cloud uploads.
Can I add my company logo as a watermark?▼
Yes! Select the "Logo Image" mode, upload your PNG or JPG logo (transparent PNGs are recommended), and adjust the scale and opacity. You can place it in the center or in the bottom corner of your pages.
Can I choose which pages receive the watermark?▼
Yes. You can apply the watermark to All Pages, First Page Only, Odd Pages, or Even Pages with a single click.
Are my confidential documents uploaded to a cloud server?▼
Never. PDFCraft operates on a strict zero-upload privacy architecture. All rendering and watermarking happen entirely in your local browser tab. Your files never touch an external server.
How can I remove an existing watermark?▼
To remove or erase an existing watermark from a PDF, use our dedicated Remove Watermark tool at /tools/remove-watermark.