Watermark PDF Online — Add Text Watermarks Easily (Free & Secure)
Add a text watermark to every page of your PDF — stamp a CONFIDENTIAL watermark on a document, mark a draft, or add your company name. Fast, simple and free.
What Is This Tool?
Watermark PDF stamps a text watermark — like "CONFIDENTIAL", "DRAFT", or a company name — onto every page of a document. It's useful for marking drafts before sharing, labeling sensitive documents, or claiming ownership over a PDF you distribute.
Everything runs on our servers over a secure connection; your files are processed, made available for download, and then automatically deleted a short time later.
Why Add a Watermark to a PDF?
A watermark marks a document's status or ownership at a glance — a "DRAFT" stamp prevents an unfinished version from being mistaken for final, and a company name discourages unauthorized redistribution.
Benefits of Watermarking PDFs
- Marks drafts clearly before sharing
- Labels confidential or sensitive documents
- Full control over text, position, color, and opacity
- No desktop software needed
Who Can Use This Tool?
- Businesses labeling confidential documents
- Writers and designers marking drafts
- Photographers and creators protecting shared previews
- Legal and HR teams marking sensitive paperwork
A Few Real-World Examples
- A business can add a "CONFIDENTIAL" watermark to a merger agreement before sharing it with external advisors.
- A writer can add a "DRAFT" watermark to a manuscript before sending it to an editor to prevent it from being mistaken for the final version.
- A photographer can add a "© Studio Name" watermark to a portfolio PDF before sharing it with potential clients.
- An HR team can add an "Internal Use Only" watermark to employee handbooks before distributing them internally.
- A teacher can add a "SAMPLE" watermark to an answer key before posting a preview for students.
Step-by-Step Guide
Upload the PDF you want to watermark.
Enter your watermark text and adjust position, color, opacity and size.
Click "Add Watermark".
Download your watermarked PDF.
Customization Options
Text — enter your custom text, e.g. "CONFIDENTIAL", "DRAFT", or "SAMPLE".
Position — choose from 9 fixed positions (corners, edges, or dead center) or "Tiled" to repeat the watermark across the whole page.
Font — choose Helvetica, Times, or Courier, with optional bold or italic styling.
Color — choose Gray, Red, Blue, or Black.
Opacity — adjust from 5% (nearly invisible) to 100% (solid). Lower opacity keeps the underlying text readable.
Rotation — set a rotation angle, e.g. 45° for a classic stamp look.
Font Size — adjust the size of the watermark text.
What You'll Get
The output is a new PDF with your watermark applied to every page. Your original file is never changed — watermarking always creates a new, separate copy; the PDF you uploaded is read, not altered.
Comparison: Watermarking Options
| Option | Description | Use case |
|---|---|---|
| Fixed Position | Places the watermark once, in one of 9 corners/edges/center. | A subtle stamp that doesn't interfere with the page content. |
| Tiled | Repeats the watermark across the entire page. | Harder to crop out — good for strongly protecting a document. |
| Rotation | Angles the watermark text, e.g. 45°. | The classic diagonal "DRAFT" or "CONFIDENTIAL" stamp look. |
| Opacity | Controls how solid or see-through the watermark is. | Low opacity (20-40%) keeps the page readable underneath. |
| Font | Helvetica, Times, or Courier, with bold/italic. | Match the watermark style to your document's tone. |
Features
- Free
- Easy to use
- No registration
- 9 fixed positions or tiled, 3 fonts with bold/italic
- Custom text, color, opacity, rotation and size
- Secure processing — files are deleted automatically
Supported Formats
Best Practices
- Lower opacity (20-40%) keeps the underlying text readable.
- Use "Tiled" placement to make a watermark harder to crop out.
- A 45° rotation is the classic "DRAFT" / "CONFIDENTIAL" stamp look.
- If you need to watermark many files, process them one at a time — each job keeps your original safe and produces a new copy.
Troubleshooting
Problem: The watermark is too faint or too bold
Solution: Adjust the Opacity setting. A value between 20-40% is usually best for readability — lower values are subtler, higher values are more prominent.
Problem: I want to use my logo instead of text
Solution: Our current tool supports text watermarks only. Image watermark support may be added in the future.
Problem: The file won't upload
Solution: Ensure your file is under 50 MB and is a valid PDF. Try a different browser.
Watermark PDF FAQ
Is adding a watermark really free?
Yes. Watermark PDF is completely free, with no sign-up, watermark on the watermark, or hidden limits beyond the file size shown above.
Is this the same as stamping a PDF?
Yes — "watermark" and "stamp" a PDF mean the same thing here: adding text like a name, date, or "confidential" across every page of your document online for free, no software required.
How do I add a CONFIDENTIAL watermark to a document?
Upload your PDF, type CONFIDENTIAL into the Text field, and (optionally) set a 45° rotation and low opacity for the classic diagonal stamp. Click the button to apply the confidential watermark to every page, then download the marked document.
Can I use my own image or logo as a watermark?
Not yet — this tool currently supports text watermarks only. Image watermark support may be added in the future.
What position and font options are available?
Pick any of the 9 grid positions (corners, edges, or dead center) for a single watermark, or choose Tiled to repeat it across the entire page, which is harder to crop out. You can also choose between Helvetica, Times, and Courier, with optional bold and italic.
Will my file be kept after watermarking?
No. Both your uploaded file and the watermarked result are automatically deleted from our servers a short time after processing.
Does this work on mobile?
Yes, Watermark PDF works in any modern mobile or desktop browser — no app required.
Is registration required?
No. You can add a watermark without creating an account or providing any personal details.
What is the maximum file size?
You can upload PDF files up to 50 MB. If your file is larger, try our Compress PDF tool first.
Privacy & Security
Your files are handled securely
All uploads are transferred over an encrypted SSL/TLS connection and processed in an isolated job folder. No one at PDFCherry views, shares, or uses the content of your documents for anything other than completing the watermark you requested.
- Uploaded files are automatically deleted within 30 minutes.
- Watermarked results are automatically deleted within 1 hour after completion.
- Your original file is never modified — watermarking always produces a new, separate output file; the PDF you uploaded is read, not altered.
Read our full Privacy Policy or Contact Us if you have any questions about how your files are handled.
Why Trust PDFCherry?
PDFCherry is built and maintained by a small, dedicated team and runs on established, industry-standard PDF libraries — not an anonymous "free tool" that resells your files or data. The privacy practices above apply across the whole site. More about PDFCherry.
Having issues or need help? Contact Us — we're here to help.
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