Stamp any PDF with custom text. Control font, color, opacity, angle, and position. Your files never leave your browser.
Add custom text watermark to PDF files.
Yes, 100% free with no limits or signup required.
All processing happens locally in your browser. Files are never uploaded to any server.
Upload your PDF, type the watermark text (e.g. CONFIDENTIAL, DRAFT), choose font size and opacity, and click Add Watermark. The watermark is applied to every page.
Diagonal watermarks are most effective as they cross the full page and are harder to remove visually. Use low opacity (20–35%) so the original content remains clearly readable.
Protect your documents and assert ownership with professional watermarks. Add text watermarks like "CONFIDENTIAL", "DRAFT", or your brand name, or overlay a logo image across every page. Customize position, opacity, size, and rotation — all in your browser.
Your confidential documents should never be uploaded to unknown servers. iLoveConvert watermarks PDFs entirely in browser memory using PDF-lib.
Upload the PDF you want to watermark.
Select text watermark (type your label) or image watermark (upload a PNG/JPG logo).
Set position, size, opacity, rotation, and color for text watermarks.
Click Apply Watermark and download the result.
Yes. Upload a PNG with transparency for a clean logo overlay.
Set opacity below 50% to keep underlying content readable.
Yes — select specific pages or apply to all.
In the output PDF, yes. The original file on your device remains unchanged.
Any text: CONFIDENTIAL, DRAFT, your company name, copyright notice, etc.