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Add Watermark to PDF

Add text watermarks to your PDF documents to protect intellectual property. Customize text, font size, color, opacity, and placement. Supports diagonal, tiled, and corner positioning.

🔒 Processing happens in your browser — files are never uploadedFree · No sign-up required

How to Use

  1. 1Upload your PDF
  2. 2Enter your watermark text (e.g., 'CONFIDENTIAL', 'DRAFT')
  3. 3Customize font size, color, and opacity
  4. 4Choose positioning (diagonal, tiled, or corners)
  5. 5Apply to all pages or first page only
  6. 6Download your watermarked PDF
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Need more power?

Upgrade to Pro for unlimited tasks, larger files, no watermarks.

Go Pro — $9/month

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Why use ShowPro's Add Watermark to PDF?

🔒
100% Private
Files never leave your browser. Zero server uploads.
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Instant Results
Processing happens locally — no waiting for uploads.
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Completely Free
No account needed. Use 5 times per day, always free.

Frequently Asked Questions

Can I watermark all pages at once?

Yes, you can apply the watermark to all pages or just the first page. Custom page ranges are available on Pro.

Can I remove a watermark later?

No — watermarks applied with this tool become part of the PDF content and cannot be removed without the original file.

What font options are available?

The watermark uses Helvetica Bold, which is universally supported across all PDF readers.

Can I use my company logo as a watermark?

Image watermarks with company logos are available on the Pro plan.

Does watermarking affect PDF quality?

No. The watermark is added as an overlay — the underlying PDF content remains unchanged at full quality.