Watermark PDF Files Online Free
Watermark PDF files online free to stamp custom text labels, warning markers, or brand text across your document sheets. Ideal for marking contracts as 'DRAFT', files as 'CONFIDENTIAL', or adding proprietary ownership statements to prevent unauthorized copy distributions.
How it works:
1. Upload the PDF file you wish to label.
2. Type in your watermark text (e.g. "CONFIDENTIAL").
3. Click Watermark PDF and download your updated document.
Key Features:
- Custom text watermarking with size options.
- Accurate overlay rendering on all pages.
- SSL transmission and automated file purge within one hour.
- Free downloads with no brand labels forced on outputs.
- Accepts documents up to 20MB files.
Frequently Asked Questions:
Is PDF Watermark free?
Yes. Label your documents for free without registering.
Can I customize the opacity?
Our free tool uses standard opacity, while the Pro tier offers advanced customization.
Are my files stored on your servers?
No. All processed PDFs are permanently deleted within one hour.
Related tools:
Secure files using PDF Password Protect or convert pages using PDF to JPG.