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WATERMARK PDF

Watermark PDF

Add text or image watermarks to PDF pages with live preview, opacity, rotation and position controls

Drop your PDF here

Add a text or image watermark to your pages

PDF only · Max 100MB · Files stay private

  • Text & Image Watermarks

    Stamp a text label or place a logo image on your pages.

  • Live Preview

    See the watermark on the page as you adjust it.

  • Choose Your Pages

    Apply to all pages, the current page, a selection or a range.

  • Private & Secure

    Uploads stay private and are deleted after retention.

How to Watermark a PDF?

  1. 1

    Upload PDF

    Drag & drop or choose a PDF file.

  2. 2

    Design watermark

    Add text or an image, then set position, opacity and rotation.

  3. 3

    Pick pages

    Apply to all pages, the current page, or specific pages.

  4. 4

    Download

    Export your watermarked PDF.

Add a watermark without rebuilding your document

OneFileKit adds your watermark as text or image content on top of the existing PDF pages. The original page content is kept as it is — pages are not flattened into pictures.

A watermark is a visible mark, not a security feature. Someone with PDF editing software may be able to remove or cover it, so do not rely on a watermark alone to protect sensitive documents.

Very large images, unusual fonts or PDFs with unusual structure can behave differently in different PDF viewers. Always check the downloaded file before sharing it.

Frequently asked questions

Can I add both a text and an image watermark?
Yes. Use the Multiple option to add several watermark objects, then select, move, reorder or delete each one before exporting.
Can I watermark only some pages?
Yes. Choose all pages, the current page, pages you select in the thumbnail list, or enter a page range such as 1-3, 5, 8-10.
Can a watermark be removed later?
A watermark is a visible mark added to the page. With PDF editing software it may be possible to remove or cover it, so it should not be your only protection.
Can I watermark a password-protected PDF?
If you enter the correct password we can open the file and create a watermarked copy. The password is used only for that session and is not stored.

Security & privacy

  • Uploads are validated by extension, MIME type and PDF structure.
  • Watermark images are validated and stored only for your job.
  • The original uploaded file is never overwritten.
  • Downloads require a secret token bound to your job.
  • Password-protected PDFs need the password; it is used only for processing and is not stored in your browser history or analytics.
  • Analytics never store your watermark text or images.

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