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Works locally after the page loads
Core processing runs in your browser after the page loads, so your files stay on your device.
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Watermark PDF
Add a text or image mark to every page. Add confidential, draft, copyright, or brand watermarks with control over position, opacity, color, size, and rotation.
Never uploaded Style before export No signup
01 / Add a file
Choose the PDF to watermark
The original stays untouched while a new copy is created.
Select PDF files
or drop PDF files here
Single file · Max 256 MB
Core processing stays in this browser after the page loads. Large files use device memory and may run slower.
Watermark PDFs / make ownership visible
Add a clear document mark while keeping the original safely on your device.
Quick answer
How do I add a watermark to a PDF?
Upload a PDF, enter watermark text or choose an image, customize the style and position, then download a new watermarked copy. The file is processed locally in your browser.
Privacy by default
Watermarking runs locally in this browser tab. Your original PDF stays on your device while a new marked copy is created.
The watermark workflow
How to watermark a PDF
Choose, style, and export
- 01
Add one PDF
Choose the document that needs a watermark.
- 02
Customize the mark
Enter text or upload an image and choose its style.
- 03
Save a new copy
Create and download the watermarked PDF.
Why use this PDF watermark tool
Make ownership and status visible
Flexible marks for real document workflows
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No account required
Open the tool and get started without registration, email, or a recurring plan.
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Fast document workflow
Simple controls keep common PDF tasks quick on desktop and mobile browsers.
04
Original file stays untouched
The tool creates a new result while your source file remains unchanged.
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Privacy by design
Your document is handled locally for the core operation instead of being sent to a remote queue.
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Free core tool
Upload a PDF, add text or an image watermark, then download a new copy.
Text, images, opacity, and placement
Watermark PDF FAQs
Text, images, opacity, and placement
Are my files uploaded?
Core processing runs locally in your browser after the page loads. Your source file stays on your device.
Do I need an account?
No. This tool is available without authentication or a recurring subscription.
What happens to my original file?
The original stays unchanged while the tool creates a new output file.
Can I use it on mobile?
Yes. It works in modern desktop and mobile browsers, subject to your device memory.
Is the original file changed?
No. The source file stays unchanged while a new output copy is created.
What files can I process?
Use a valid PDF supported by your browser and device memory.
Learn before you process
PDF guides for this workflow
Get the answer, understand the trade-offs, then use the focused tool when you are ready.
How to watermark a PDF (text, image or a PDF overlay)
Stamp text or an image on every page, or lay one PDF over another, and understand what a watermark does and does not protect.
Read the watermark guide
Best private PDF tools: browser-local vs cloud
A neutral guide to choosing a PDF tool when privacy matters: the questions to ask, a five-minute test you can run yourself, and which kind of tool fits which document.
Read the privacy guide
Comparing PDF tools? FreePDFKit vs iLovePDF · FreePDFKit vs Smallpdf · Browser-local vs cloud PDF tools