Files deleted instantly No account required Works on any device

Add Watermark to PDF

Stamp any custom text watermark onto your PDF pages. Choose position and opacity. No signup. Files deleted instantly after processing. Max 10MB.

Why use our Add Watermark to PDF Tool?

Protect your intellectual property or mark documents as CONFIDENTIAL, DRAFT, or any custom text by adding a transparent text watermark to every page. Choose between diagonal and centered placement and control the opacity. Files are permanently deleted the moment you download the result.

How to Add Watermark to PDF in 3 Easy Steps

  1. Upload your files: Drag and drop your files into the drop-zone at the top of the page, or click to browse your device.
  2. Process the files: Select any specific options required (such as selecting pages or setting passwords) and click the processing button.
  3. Download your result: Once processing is complete, your final file will be automatically formatted and ready for instant download.

Frequently Asked Questions

How do I watermark pdf files without losing quality?

Our advanced processing engine ensures that when you watermark pdf files, your document maintains optimal quality. The process is completely lossless and keeps formatting intact.

Is it safe to watermark pdf files on PDFKill?

Yes, it is 100% safe. All files are uploaded over a secure 256-bit encrypted connection and are automatically and permanently deleted from our servers immediately after processing.

Can I use PDFKill on my mobile phone?

Absolutely! PDFKill relies on your web browser, meaning you can easily watermark pdf files on any mobile phone, tablet, or computer without installing any apps.

What is the maximum file size I can upload?

The maximum file size is 10MB per file. Files are processed immediately and permanently deleted from our servers right after your download is complete.

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