Watermark PDF
Add a text watermark to PDF pages. Supports Chinese text, color, angle and opacity, without uploading files.
Download a new copy; your original is unchanged.
Can I add a PDF watermark without uploading the document?
Yes. Pocketful draws your text as a watermark image on every PDF page in the browser. You can set text, color, opacity and angle. The watermark follows the visible page center, including rotated and cropped pages, and the original file stays unchanged.
Example: steps and expected output
- Load the public three-page PDF, or continue from a result created in Organize PDF.
- Set the watermark text to DEMO, color to red, opacity to 20%, and angle to 45°.
- Create PDF, download the copy and inspect all pages. Chinese text is also supported; its appearance uses the fonts available on your device.
| Input | Settings | Expected result |
|---|---|---|
| Three-page public PDF | DEMO · red · 20% · 45° | Three pages, centered DEMO on each |
| Two-page result from Organize PDF | Same settings | Two pages in the selected order, both marked |
The example checks placement and page count, not document security. A watermark labels a copy; it does not prevent editing or prove ownership.
Limits and important details
- Use unencrypted PDFs up to 50 MB and 500 pages. Automatic transfer to the next tool is limited to 30 MB. Text is limited to 80 characters.
- Watermark text is embedded as an image, not selectable text. Other page content is retained where supported by PDF rewriting.
- Editing a signed PDF can invalidate its signature. Keep the original; this tool does not re-sign or lock a document.
- Optional compression rasterizes all pages. Text search, forms and links will not be retained, and smaller file size is not guaranteed.
Content updated:
FAQ
Does PDF watermarking support Chinese text?
Yes. The browser renders the text into an image using a local font. Check the downloaded copy if a font or character is missing.
Can this watermark stop someone from editing my PDF?
No. It is a visible label, not encryption, an access restriction or tamper-proof protection.
Will a watermark change my page order or rotation?
The watermark workbench preserves page order and existing rotation. It positions the label in the visible area; inspect unusual documents before sharing.