Watermark PDF Online

Stamp a diagonal text watermark such as DRAFT or CONFIDENTIAL on every page – free, private and mobile-friendly.

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Select PDF file

or drag & drop PDF here

🔒 Processed 100% in your browser — your file is never uploaded to a server

Continue with:Watermark, Border & Text ToolsWatermark ImageAdd Text to Image

About Watermark PDF

Quick answer

Watermark PDF adds a visible marking to document pages. Select the document, enter the available watermark settings, process and save the marked copy. Check contrast, placement, page coverage and whether the marking blocks important content.

iLikePDF's Watermark PDF tool lets you stamp a diagonal text watermark such as DRAFT or CONFIDENTIAL on every page – free and without any software. It is a good fit for mark a working copy as DRAFT, label a shared copy as CONFIDENTIAL or COPY and show that a version is not final. You may also know it as watermark pdf online, free watermark pdf.

Everything happens in your browser: your files are not uploaded to our servers. It is private by design, quick to use and mobile-friendly.

Full walkthrough: How to Watermark a PDF: DRAFT Marks, Copies and Limits

Conceptual illustration of the Watermark PDF workflow: select a file, set options and download the result
Watermark PDF: conceptual illustration of the workflow, not a screenshot.

How to Use Watermark PDF

  1. Choose the PDF.
  2. Type the watermark text, for example DRAFT.
  3. Select Apply Watermark & Download.
  4. Check a few pages, including one with a lot of content, to see that the mark does not hide important details.

Before & After

Before using Watermark PDF - your original file(s)

Before (Your original file(s))

  • Files as you have them
  • Nothing has been changed yet
After using Watermark PDF - new result file

After (New result file)

  • A new file downloads to your device
  • Your original stays untouched

Conceptual illustration, not a screenshot.

Supported Input and Output

Watermark PDF Features

  • ✅ 100% free – no payment, no sign-up, no watermark.
  • ✅ No software – watermark pdf online straight in your browser.
  • ✅ Private by design – your file is processed on your device, not uploaded to our servers.
  • ✅ Original kept – a new file is created.
  • ✅ Works on mobile and desktop – Android, iPhone, Windows and Mac.

Who Should Use Watermark PDF?

  • Students – Combine, split and organise notes, assignments and study material.
  • Job Seekers – Put resumes, certificates and ID proofs in the order a form expects.
  • Professionals – Prepare contracts, reports and invoices for sharing.
  • Small Businesses – Send clean, ordered documents to customers and suppliers.
  • General Users – Keep personal papers tidy and easy to share.

Use Cases and Output Checks

Common uses

  • Mark a working copy as DRAFT.
  • Label a shared copy as CONFIDENTIAL or COPY.
  • Show that a version is not final.

Check the output

  • The mark is legible but does not block reading.
  • It appears on every page.
  • Colour and angle work for your document.

Limitations and Troubleshooting

  • Style, size, colour, position and opacity are fixed in this version.
  • Text only; there is no image or logo watermark.
  • A watermark is visible marking, not security. It can be cropped or covered and it does not encrypt the file.

Common problems

Accepted inputOne PDF (.pdf).
TextAny text you type; if empty, CONFIDENTIAL is used. Basic Latin characters only.
Style48 pt Helvetica Bold, red, 35% opacity, rotated 45°, on every page.
OutputA PDF named watermarked-.pdf.
File handlingThe processing code runs in your browser. The page loads the pdf-lib library from the unpkg CDN when it opens; the tool code does not send your PDF to a server.
ProblemWhat to try
Text seems off-centreThe mark is placed relative to the page centre before rotation; check on pages of different sizes.
An error appearsRemove non-Latin characters from the text.
Tool groupWatermark, Border & Text ToolsMore toolsWatermark ImageMore toolsAdd Text to ImageToolHeader & FooterToolProtect PDFToolEdit PDFGuideHow to Watermark a PDF: DRAFT Marks, Copies and LimitsGuideHow to Organize PDF Files: Merge, Split & Rotate

Quick Summary

FeatureDetails
Tool nameWatermark PDF
Cost100% free
Software requiredNo
File uploadNo – processed in your browser
Supported devicesMobile & desktop
Best forMark a working copy as DRAFT

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Disclaimer

Watermark PDF is for personal and educational use. Check your local laws and your organisation's rules before you process copyrighted or sensitive documents. Results depend on your file and browser, so always check the output before you use it.

FAQs – Watermark PDF

1. Watermark PDF kaise use karein?

Apni file select karein, settings check karein aur “Apply Watermark & Download” button dabayein. Result neeche dikhega; phir Download par tap karein.

2. Kya Watermark PDF free hai?

Haan, iLikePDF ka Watermark PDF tool bilkul free hai. Koi payment ya signup nahi chahiye.

3. Kya main mobile se Watermark PDF use kar sakta hoon?

Haan, yeh tool mobile-friendly hai. Aap Android ya iPhone ke browser se bhi Watermark PDF use kar sakte hain.

4. Kya meri file upload hoti hai?

Nahi. Yeh tool aapke browser me chalta hai; aapki file iLikePDF ke server par upload nahi hoti. (Kuch features ek helper library CDN se load karte hain, lekin aapki file unme nahi jaati.)

5. What does Watermark PDF do?

Watermark PDF adds a visible marking to document pages. Use it when the required result matches this operation; keep a separate copy of the source.

6. How do I use Watermark PDF online?

Select the document, enter the available watermark settings, process and save the marked copy. Open the downloaded result before sending it to someone else.

7. Which source should I prepare for Watermark PDF?

Prepare a PDF and the intended watermark wording or supported artwork. Start with a file that opens correctly in its usual viewer. A renamed extension does not convert the underlying format.

8. What should I check in the Watermark PDF output?

Check contrast, placement, page coverage and whether the marking blocks important content. Keep the original until the result has passed these checks.

9. Does a watermark prevent copying?

No. A visible mark can communicate ownership or status but does not itself encrypt a document or prevent copying.

10. Can I add a logo watermark?

Only if the interface supports image input. A text-only control cannot create a logo watermark without an additional supported workflow.

11. Where should I place a watermark?

Choose a position that remains visible without covering necessary text. Check pages with diagrams and tables, not only the first page.

12. How transparent should the watermark be?

Use enough contrast to communicate the marking while preserving readability. The appropriate setting depends on page content and print use.

13. Can I watermark only selected pages?

That requires a page-range option. If it is unavailable, prepare the selected pages separately and carefully rebuild the full document.

14. Can a watermark hide confidential text?

No. Covering sensitive information with a watermark is not secure redaction. Remove sensitive content using an appropriate redaction process.

15. Can I remove the watermark later?

Removal is not guaranteed after saving. Keep an unmarked original and make a separate copy for each distribution purpose.

16. Will a watermark invalidate a signature?

Changing a signed document can affect signature validation. Apply markings before the final signing step when your workflow permits it.

17. Why might Watermark PDF fail on a large file?

Long documents with complex page graphics may process more slowly. Close unnecessary tabs and test a smaller non-confidential sample to separate a file-specific problem from a browser problem.

18. When is Watermark PDF useful?

Label a review copy as a draft or identify a distributed document. Confirm the recipient’s requirements before preparing the final version.

19. What can I do after using Watermark PDF?

Related next steps include Header & Footer, Protect PDF, Edit PDF. Choose one only when you need that additional operation. Review the a visibly marked PDF before applying another change, and retain your source copy.