Stamp PDF
Add DRAFT, APPROVED, CONFIDENTIAL

No. All processing happens entirely in your browser using JavaScript. Your PDF files never leave your computer and are never uploaded to any server. This makes the tool completely private and secure.

No. The original PDF content is preserved exactly. The stamp is added as an overlay without re-compressing or degrading existing images and text.

Upload your PDF, select a preset stamp (DRAFT, APPROVED, etc.) or enter custom text, adjust the color, size, opacity, and position, then click "Download".

Stamps are bold, prominent text that clearly communicates document status (DRAFT, APPROVED). Watermarks are subtle background text or images for branding or copyright. For subtle watermarks, use our PDF Watermark tool.

Yes! Use the "Custom Text" field to enter any text up to 20 characters. You can also customize the color to match your corporate branding or requirements.

Yes, the stamp is applied to every page of your PDF document in the same position consistently.

Stamps use a bold sans-serif font (Helvetica Bold) which is a standard PDF font, ensuring compatibility across all PDF readers and operating systems.

This tool can open PDFs with viewing restrictions but cannot modify PDFs that require a password to open. You'll need to unlock the PDF first.

Yes! After uploading a PDF, the live preview shows exactly how your stamp will appear on the first page. Adjust settings and watch the preview update in real-time.

This tool is designed for text-based stamps. For image-based overlays like logos or signatures, use our PDF Watermark tool which supports image uploads.

Stamps provide a quick, standardized way to indicate document status. They're immediately visible, can't be mistaken for original content, and are applied consistently across all pages.

There's no enforced limit since processing happens in your browser. However, very large PDFs (100MB+) may slow down your browser. For best performance, keep files under 100MB.

We offer a complete PDF toolkit: Merge PDFs, Extract Pages, Reorder Pages, Watermark PDF, Images to PDF, Text to PDF, PDF to Images, PDF Info Viewer, Metadata Editor, and Certificate Generator. All tools are free and privacy-first.