PDF Watermark, Stamp & Page Numbering

Client-SideOffline Ready

Add custom text watermarks, official rubber stamps (Approved, Confidential), and sequential page numbering to PDF documents 100% locally in your browser.

Drop your PDF here or browse

Documents stay 100% private in browser memory. Watermarks, stamps, and page numbers are compiled instantly.

Text Watermark & Custom Angle

Apply diagonal or horizontal watermark text (e.g. CONFIDENTIAL, DRAFT) with custom opacity, rotation, and single or repeated 3x3 tile layouts.

Formal Stamps & Page Numbers

Add boxed legal rubber stamps (APPROVED, REJECTED) with dynamic dates, plus sequential Bates-ready page numbering with cover-page skip.

100% Client-Side Privacy

Documents are processed strictly inside browser memory via PDF-Lib. Your confidential business agreements and tax files never touch any server.

Frequently Asked Questions

How do I add a text watermark like "CONFIDENTIAL" or "DRAFT" to my PDF?
Upload your PDF, select the "Watermark" tab, and enter your desired text or choose a preset like CONFIDENTIAL or DRAFT. You can adjust the rotation angle (e.g. 45° diagonal or horizontal), opacity, font size, and color with instant real-time live preview before downloading.
Can I add formal rubber stamps (e.g. APPROVED, REJECTED) with custom dates?
Yes. Switch to the "Stamp" tab to apply legal, double-bordered rubber stamps such as APPROVED, CONFIDENTIAL, REJECTED, PAID, or VERIFIED. You can customize the primary label, audit date/signature line, tilt angle, ink color, and place the stamp in any corner or the center of pages.
How does sequential page numbering work, and can I skip the cover page?
In the "Page #" tab, enable page numbering and choose your preferred format like "Page {n} of {total}" or "{n} / {total}". You can place page numbers across 6 standard positions (bottom-center, bottom-right, etc.), customize margins and font sizes, and toggle "Skip First Page" so cover pages remain unnumbered.
Can I repeat or tile the watermark across the entire page?
Yes. Toggle "Tiled 3x3 Grid Pattern" under watermark settings. Instead of a single centered watermark, your text will be repeated across a 3x3 grid on each page to protect intellectual property and prevent unauthorized copying.
Is my confidential PDF document uploaded to any external server?
No. All PDF loading, canvas rendering, text stamping, and document generation run 100% locally inside your web browser using WebAssembly and PDF-Lib. Your confidential agreements, financial records, and private documents never leave your computer.
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