Add Text Watermark to PDF
Stamp custom text across every page of a PDF as a watermark.
Drop a PDF here or click to browse
Your file stays on your device — nothing is uploaded.
100% private — your files are processed in your browser and never uploaded to a server.
The Add Text Watermark to PDF tool overlays custom text — like Confidential or Draft — across every page of a document. Set the text, angle and opacity, then download the watermarked PDF. It all runs in your browser, keeping the file private.
Why use this tool
Custom watermark text
Write any label, such as Draft, Confidential or your name.
Adjustable look
Control the angle, size and opacity of the watermark.
Runs in your browser
No upload — your PDF stays on your device throughout.
How to use it
Open your PDF
Select the PDF you want to watermark.
Set the watermark
Enter the text and adjust the angle and opacity.
Download the result
Save the PDF with the text watermark on every page.
Frequently asked questions
Can I change the watermark angle?+
Yes. You can rotate the text, including the classic diagonal watermark look.
Can I make the watermark faint?+
Yes. Lower the opacity so the watermark sits softly behind your content.
Is my PDF uploaded anywhere?+
No. The watermark is applied in your browser, keeping the document private.
Is the tool free?+
Yes, completely free with no sign-up and no extra watermark.