Add Watermark to PDF Online
Protect your documents by adding a custom text watermark. Simple, fast, and completely private.
Drag & drop your PDF here, or click to select
100% Private
Your files never leave your computer. The watermarking process happens securely in your browser.
Custom Text
Add any text you need, such as "Draft," "Confidential," "Copyright," or your company's name.
Instant Application
Your watermark is applied and your new file is ready for download in just a few seconds.
How to Add a Watermark to a PDF
1
Upload Your PDF
Select the PDF you want to watermark by dragging it into the toolbox above.
2
Enter Your Text
In the text box that appears, type the exact text you want to use for your watermark.
3
Apply & Download
Click the "Add Watermark" button. Your newly protected PDF will be ready to download instantly.
Frequently Asked Questions
Is it safe to watermark a proprietary document?
Yes. Because PDFsmith processes your file locally in your browser and never uploads it, it's the most secure way to add a watermark to sensitive or proprietary documents.
Is the watermark permanently added to the PDF?
Yes. The watermark is embedded into the content of the PDF pages. It is not a simple layer that can be easily removed. It will be visible to anyone who opens the document on any device.