Stamp text like CONFIDENTIAL or your logo onto pages, with full control over look and position.
Quick answer
To watermark a PDF, open PDFella's Watermark tool, upload the file, type your watermark text or choose a logo image, set opacity, rotation, size and position (or tile it), optionally limit it to certain pages, then click Add watermark and download.
Updated 5 October 2026 by the PDFella team
Key facts
Step by step
Drag your PDF onto the upload area or click Choose file. It's opened in your browser. Nothing is uploaded.
Choose Text or Image. Set font, size, colour, opacity and rotation, pick one of nine positions or tile across the page, and choose whether it sits on top of or behind content. A live preview shows the first page.
The watermark is written onto the selected pages.
Rename the file if you like and click Download, or open it in the editor to keep working.
Why PDFella
Type any text or use a PNG/JPG logo.
See exactly how it looks before applying.
Place it under the content for a subtle mark.
Your PDF never leaves your device.
For drafts and confidential documents, a diagonal text watermark at 20–30% opacity is clearly visible but leaves the content readable. For branding, a small logo in a corner at higher opacity works best. Tiling makes it harder to crop the watermark out.
Businesses
Mark drafts as DRAFT or CONFIDENTIAL.
Photographers
Brand portfolio PDFs with a logo.
Publishers
Watermark review copies.
Upload it to Watermark, set your text or image and click Add watermark.
Yes. Choose Image and upload a PNG or JPG.
Yes. Enter a page range.
No. Watermarking runs in your browser.
Yes. Turn on Place behind content.
Yes, with no account.