Add & Remove PDF Watermark
Stamp documents with custom text, confidential tags, or company logos — or remove unwanted watermarks & stamps with clean on-device processing.
Select or Drop PDF Document
Add custom text stamps, corporate logos, or cleanly erase unwanted watermarks. Files are processed locally.
How It Works
Add or erase watermarks in three simple steps
Select PDF File
Drop your PDF document. It loads directly into your browser tab with zero cloud upload.
Customize or Erase
Type text or upload a logo with live preview, or draw an eraser mask over unwanted stamps.
Download Ready PDF
Generate your updated PDF instantly with full vector sharpness and save directly to your device.
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Frequently Asked Questions
How does the PDFCraft Add Watermark tool work?▼
PDFCraft uses local client-side WebAssembly to overlay custom text or image stamps onto each page stream inside your browser tab. You can customize font size, rotation angle (diagonal 45° or horizontal), opacity, and position with real-time live preview — with zero cloud uploads.
Can I remove an existing watermark from a PDF?▼
Yes! PDFCraft features a 2-in-1 hybrid removal system. It automatically attempts to detect and strip standard watermark layers and annotations. For flattened or scanned watermarks (like CamScanner stamps or corner marks), you can use the interactive visual eraser to draw a box over the watermark and cleanly mask it across all pages.
Can I use my company logo as a watermark?▼
Yes. Switch to the "Image / Logo" watermark mode, upload your PNG or JPG logo (transparent PNGs work best), and adjust the scale and opacity. You can place it in the center, corner, or tile it across the document.
Are my confidential documents uploaded to any server?▼
Never. PDFCraft operates on a strict zero-upload privacy architecture. All PDF rendering, watermark rendering, and redaction happen entirely inside your local web browser session. Your confidential files never touch an external server.
Does adding or removing a watermark degrade document quality?▼
No. Original vector text, fonts, and graphics are preserved with 100% sharpness. Watermarks are cleanly composited without re-compressing or rasterizing your original PDF pages.