Watermark PDF

Add text or image watermarks to your PDF files. Perfect for branding, copyright protection, or marking documents as confidential.

How to Add Watermarks to PDF

  1. 1

    Upload Your PDF

    Drag and drop your PDF file or click to select it from your device.

  2. 2

    Choose Watermark Type

    Select either text watermark (with custom font, size, and color) or image watermark (upload your logo or stamp).

  3. 3

    Customize Position & Appearance

    Choose from 7 position options (corners, edges, center), adjust opacity (0-100%), and rotation (0-360°) to perfectly place your watermark.

  4. 4

    Download Watermarked PDF

    Your watermarked PDF will be processed instantly and ready to download. The watermark is applied to all pages.

Why Watermark Your PDFs?

🔒 Copyright Protection

Protect your intellectual property by adding a visible watermark that identifies you as the creator or owner of the document.

🏢 Brand Your Documents

Add your company logo or brand name to all your PDFs to maintain consistent professional branding across all materials.

🔐 Mark as Confidential

Clearly indicate sensitive documents with "CONFIDENTIAL" or "DRAFT" watermarks to prevent unauthorized distribution.

📄 Track Document Versions

Add version numbers, dates, or status labels to help track different versions of your documents.

Features

  • Text watermarks with custom font size (12-200px) and color
  • Image watermarks (PNG, JPEG) for logos and stamps
  • 7 positioning options (corners, edges, center)
  • Adjustable opacity (0-100%)
  • Rotation control (0-360°) for diagonal watermarks
  • Applied to all pages automatically
  • 100% client-side - your files never leave your device
  • No file size limits up to 100MB

Frequently Asked Questions

Is this watermark tool really free?

Yes, completely free! There are no hidden fees, no registration required, and no limits on how many PDFs you can watermark.

Are my files uploaded to a server?

No. All watermarking happens directly in your web browser using JavaScript. Your PDF never leaves your device, ensuring complete privacy and security.

Can I add watermarks to password-protected PDFs?

No, password-protected PDFs must be unlocked first before adding watermarks. Use our Unlock PDF tool if you have the password.

What image formats are supported for watermarks?

PNG and JPEG images are supported. PNG is recommended for logos with transparency.

Will the watermark appear on all pages?

Yes, the watermark you configure will be applied to every page of your PDF document automatically.

Can I make the watermark semi-transparent?

Yes! Use the opacity slider to adjust transparency from 0% (invisible) to 100% (fully opaque). We recommend 30-70% for subtle watermarks.

What's the maximum PDF file size?

You can watermark PDFs up to 100MB. Processing happens in your browser, so very large files may take longer depending on your device's performance.

How do I create a diagonal watermark?

Use the rotation slider to rotate your watermark from 0° to 360°. A 45° angle is common for diagonal "CONFIDENTIAL" or "DRAFT" stamps.

Can I remove watermarks from PDFs?

This tool adds watermarks, it doesn't remove them. Watermarks added using this tool are permanently embedded in the PDF and cannot be easily removed.

Your Privacy is Protected

This PDF watermark tool processes everything in your browser using JavaScript. No files are uploaded to any server, and we don't store or have access to your documents. Your PDFs remain completely private and secure.