PDF Page Numbers & Watermark
A free tool to add page numbers (with custom position, start number, and format) and a diagonal watermark (with custom opacity and color) to every page of a PDF. All processing happens in your browser, so your files are never uploaded to any server.
Drag & drop a PDF
or
PDF file (single file, no size limit)
Watermark and page-number text support Latin letters, numbers, and symbols (standard fonts cannot render full-width characters such as Japanese).
For layout reference only. Check the exported PDF for the actual result.
How to Use
Load a PDF
Drag & drop the PDF you want to stamp, or click to select it. Your file is never uploaded to a server.
Configure numbers & watermark
Set the page-number position, format, and start number, and the watermark text, angle, opacity, and color. The preview on the right shows the layout.
Save & download
Enter a file name and press "Apply & Save PDF". A new PDF with page numbers and watermarks on every page is generated and downloaded.
About this tool
An online tool to add page numbers and watermarks to every page of a PDF at once - perfect for numbering proposals, contracts, and reports, or stamping handouts with "CONFIDENTIAL", "DRAFT", or "SAMPLE". The biggest advantage is that your files are never sent to a server. Popular online PDF services require uploads and often limit free usage. This tool runs entirely in your browser, so you can process even confidential documents safely, with unlimited use, no sign-up, and no watermark ads.
Features
- Browser-Only ProcessingFiles are never uploaded; everything runs on your device. Safe even for confidential documents.
- Flexible Page NumbersChoose from 6 positions, a custom start number, several formats like "1 / N", plus font size and color.
- Diagonal WatermarkPlace watermark text at an angle and adjust its opacity and color to protect your handouts.
- No Sign-up, 100% FreeNo registration or installation. The output PDF has no ads or watermark.
Use Cases
- Number proposals, reports, and handouts
- Stamp documents with "CONFIDENTIAL" before sharing
- Add a "DRAFT" or "SAMPLE" watermark for review
- Add sequential numbers to scanned booklets or contracts
- Show "1 / N" numbers including the total page count
FAQ
Are my PDFs uploaded to a server?
Can I use Japanese text for the watermark or page numbers?
What page-number formats are available?
Will my original layout be affected?
Can I process password-protected PDFs?
Feedback
Missing a feature, or getting a result that looks wrong? Let us know — we improve our tools based on your feedback.