Add Watermark to PDF Online

Stamp text or logo watermarks across every page of your PDF simultaneously with precise position controls and advanced document layer rendering.

Mark Your Documents Before You Share Them

Sending a PDF proposal, report, or document to someone outside your organization? A watermark makes it clear who the document belongs to, marks it as confidential, or identifies the recipient — all without altering the content itself.

This tool adds text or image watermarks to every page of your PDF in seconds, directly in your browser. Your file is never uploaded to any server, so sensitive documents stay completely private.

When Do You Need a PDF Watermark?

  • Confidential Documents

    Add "CONFIDENTIAL" or "PRIVATE" as a diagonal watermark on contracts, financial reports, legal documents, and internal company files before sharing them externally.

  • Draft Documents

    Mark proposals, reports, and presentations as "DRAFT" so recipients know the document is not final and should not be acted on or redistributed.

  • Branded Documents

    Add your company logo or name as a subtle watermark to client proposals, portfolios, and official documents to reinforce your brand identity.

  • Copyright Protection

    Watermark creative work, photography portfolios, design files, and educational materials to discourage unauthorized copying or redistribution.

Text Watermark or Image Watermark?

  • Text Watermark

    Type any text — "CONFIDENTIAL", "DRAFT", your company name, or anything else. Control the font size, color, opacity, rotation, and position. Works instantly with no image file needed.

  • Image Watermark

    Upload your company logo or any image as the watermark. PNG files with transparent backgrounds work best. Your logo will appear cleanly on every page without a white box.

Watermark Placement Tips

  • Diagonal placement at 45 degrees is the most recognized confidential document style
  • Center placement works best for draft watermarks
  • Corner placement is subtle and suits branded documents
  • Lower opacity (20-40%) keeps the watermark visible without obscuring content
  • Higher opacity (60-80%) is better for draft or confidential markings
  • For logo watermarks, PNG with transparent background gives the cleanest result

Frequently Asked Questions

Yes. The watermark is automatically applied to every page of your PDF in one step. You do not need to add it page by page.

Yes. You can upload an image file such as a PNG logo and use it as a watermark. PNG files with transparent backgrounds work best so only your logo appears without a white box around it.

No. Your PDF is processed entirely in your browser. The file never leaves your device, so your documents stay completely private and secure.

Yes. You can adjust the opacity of the watermark from fully visible to nearly transparent. A low opacity watermark is subtle enough to read but does not distract from the document content.

Yes. You can set any rotation angle for the watermark. A 45 degree diagonal watermark across the page is the most common style used on confidential documents.

Yes. The watermark is embedded into the PDF and cannot be easily removed by simply selecting and deleting it. However, with advanced PDF editing software it may still be possible to remove it.

Yes. You can position the watermark at the center, top, bottom, or corners of each page. You can also adjust the size to make it larger or smaller.