💧 Add Watermark
Upload a PDF to open the watermark editor — add text or image watermark with live preview.
Processing…
Adjust opacity and angle to create a subtle diagonal watermark.
Drop PDF here
or click to browse — opens editor
Frequently Asked Questions
Is Add Watermark to PDF really free? ▾
Yes, 100% free. No account needed, no watermarks, no limits on file size imposed by us.
Do my files get uploaded to a server? ▾
Never. All processing happens 100% inside your browser using JavaScript. Your files never leave your device.
Which browsers are supported? ▾
Any modern browser — Chrome, Firefox, Edge, Safari on desktop and mobile.
Is there a file size limit? ▾
No server-imposed limit. Processing depends on your device's memory and browser. Most PDFs under 200 MB work perfectly.
How is this better than or ? ▾
ConvertPDF.Live processes files entirely in your browser — nothing is uploaded, so your files stay private.
We're always improving ConvertPDF.Live. If you need a tool that's not here, want to report a bug, or have ideas — we'd love to hear from you!
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