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Simple Tools Studio
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Watermark PDF

Stamp a custom text watermark across the pages of your PDF document to claim ownership or denote confidentiality.

Click to browse or drag & drop PDFs here

Supports up to 4 PDFs per session (Max 25MB each)

100% Free Forever
No Data Stored on Server
Fast & Secure

How does the Watermark PDF tool work?

Our tool stamps text or image watermarks onto PDF pages. You can customize the transparency, position layout, font size, scale, and specific page ranges where the stamp watermark is applied.

This process guarantees that you retain high-fidelity formatting, including background graphics and text pathways, while overlaying a secure watermark logo to protect your assets.

Privacy Architecture

Your privacy and document security are paramount. The uploaded files are transferred securely via standard 256-bit SSL encryption. Once the watermarking process finishes, the resultant data and your original document are automatically marked for deletion from the active processing servers, ensuring your sensitive layouts, branded items, or personal files are safe.

Frequently Asked Questions

Are my PDF files uploaded to a server?

Yes. In order to parse page boundaries and stamp watermarks onto document coordinates, the file is temporarily transferred via encrypted HTTPS to a dedicated processing array layer where watermarking takes place.

Can I use an image logo as a watermark?

Yes! You can choose to write a custom text watermark or upload an image file (such as a PNG or JPG logo) to stamp across your PDF pages.

Is there a size limit to the documents I can watermark?

Currently, the tool supports single PDF files up to 25 Megabytes (MB) in size. This comfortably accommodates design drafts, ebooks, and paperwork.

Can I select which pages receive the watermark?

Yes, the watermark layout tool lets you define page targets, such as stamping all pages, first page only, or custom page indexes.

Are my original PDF files permanently modified?

No. The internal engine strictly runs a "read-only" edit against your source file and generates a distinct stamped PDF download, leaving your original local file completely untouched.

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