Watermark
Stamp text diagonally across the page.
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Drag a PDF here, or click to choose
Latin letters, numbers and symbols only
How to add a watermark to a PDF
- Drop a PDF file into the dropzone.
- Enter the watermark text (Latin letters, numbers and symbols only), and adjust size, opacity and diagonal placement.
- Click "Stamp" to download the watermarked PDF.
FAQ
Is my file uploaded to a server?
No — everything runs locally in your browser via WebAssembly; your file never leaves your device.
Can I use Korean text in the watermark?
No — the watermark font only supports Latin letters, digits and symbols; Korean (Hangul) text is not supported.