Add Watermark

Add a text watermark to your PDF pages

Drop your PDF file here

Up to 100 MB

How to Add Watermark to PDF Online

Upload PDF

Drag and drop your PDF file or click to browse. Your document stays on your device.

Customize Watermark

Enter your watermark text and adjust opacity, color, font size, and rotation to match your needs.

Download Result

Click apply and download your watermarked PDF instantly. Every page is stamped consistently.

Why Use Our PDF Watermark Tool?

100% Private

Your PDF is watermarked entirely in your browser. Unlike other services that upload your documents to their servers, your file never leaves your device — complete confidentiality guaranteed.

Instant Processing

No upload or server wait time. Watermarks are applied on your device in seconds, regardless of how many pages your PDF has.

Works Everywhere

Use on any device with a modern browser — desktop, tablet, or mobile. No software installation required.

Full Customization

Control every aspect of your watermark — text content, opacity, color, and font size. Create professional-looking watermarks that match your brand or requirements.

Frequently Asked Questions

Is it safe to add watermarks to PDFs online?: Yes, our watermark tool is completely safe. Your file is processed entirely in your browser and never uploaded to any server. Unlike other online tools that send your documents to their cloud for processing, we keep everything on your device.
Can I customize the watermark appearance?: Absolutely. You can customize the watermark text, opacity, color, and font size. This gives you full control to create subtle background watermarks or bold stamps depending on your needs.
Will the watermark affect PDF quality?: No. The watermark is added as an overlay on each page without altering the original content. All text, images, and formatting in your PDF remain exactly the same — only the watermark layer is added.
Can I add a watermark to specific pages only?: Our tool applies the watermark to all pages for consistent branding and protection. If you need watermarks on specific pages only, you can split your PDF first, watermark the desired pages, then merge them back together using our free tools.
What is the best watermark opacity for documents?: For most documents, 20-30% opacity works best — visible enough to deter copying but light enough to keep content readable. Use higher opacity (50-70%) for bold DRAFT or CONFIDENTIAL stamps. Our tool lets you adjust opacity in real time to find the perfect balance.
Can I add an image watermark instead of text?: Currently our tool supports text-based watermarks with full customization of font, color, size, opacity, and rotation. Text watermarks are the most common choice for branding, confidentiality marks, and draft labels.

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How to Add Watermark to PDF Online

Upload PDF

Drag and drop your PDF file or click to browse. Your document stays on your device.

Customize Watermark

Enter your watermark text and adjust opacity, color, font size, and rotation to match your needs.

Download Result

Click apply and download your watermarked PDF instantly. Every page is stamped consistently.

Why Use Our PDF Watermark Tool?

100% Private

Your PDF is watermarked entirely in your browser. Unlike other services that upload your documents to their servers, your file never leaves your device — complete confidentiality guaranteed.

Instant Processing

No upload or server wait time. Watermarks are applied on your device in seconds, regardless of how many pages your PDF has.

Works Everywhere

Use on any device with a modern browser — desktop, tablet, or mobile. No software installation required.

Full Customization

Control every aspect of your watermark — text content, opacity, color, and font size. Create professional-looking watermarks that match your brand or requirements.

Frequently Asked Questions

Is it safe to add watermarks to PDFs online?

Yes, our watermark tool is completely safe. Your file is processed entirely in your browser and never uploaded to any server. Unlike other online tools that send your documents to their cloud for processing, we keep everything on your device.

Can I customize the watermark appearance?

Absolutely. You can customize the watermark text, opacity, color, and font size. This gives you full control to create subtle background watermarks or bold stamps depending on your needs.

Will the watermark affect PDF quality?

No. The watermark is added as an overlay on each page without altering the original content. All text, images, and formatting in your PDF remain exactly the same — only the watermark layer is added.

Can I add a watermark to specific pages only?

Our tool applies the watermark to all pages for consistent branding and protection. If you need watermarks on specific pages only, you can split your PDF first, watermark the desired pages, then merge them back together using our free tools.

What is the best watermark opacity for documents?

For most documents, 20-30% opacity works best — visible enough to deter copying but light enough to keep content readable. Use higher opacity (50-70%) for bold DRAFT or CONFIDENTIAL stamps. Our tool lets you adjust opacity in real time to find the perfect balance.

Can I add an image watermark instead of text?

Currently our tool supports text-based watermarks with full customization of font, color, size, opacity, and rotation. Text watermarks are the most common choice for branding, confidentiality marks, and draft labels.