PDFDEN / Edit / Watermark PDF

Add Watermark to PDF

Add watermark to PDF files and every page is marked as a draft, confidential or yours. Text or a logo goes on all pages in one pass.

or drop it here Processed on your device. Nothing is uploaded.

How to add watermark to PDF

Drop your PDF into the box.
Type the watermark text or pick a logo image.
Set centered or tiled, then adjust rotation, opacity, size and color.
Run it and download the watermarked PDF.

Put a text or logo watermark on every page

A single centered stamp works for "DRAFT" or "CONFIDENTIAL". Tiled repeats the mark across the whole page, which is harder to crop out of a screenshot.

Lower the opacity to keep the document readable under the mark. Rotation sets the classic diagonal look. Pick a color that stands out from the page without hiding the text.

Make the watermark harder to remove

The watermark is written into the page content, not added as a loose comment. To discourage edits, flatten the PDF and then password protect it with editing restricted. See how to password protect a PDF for the settings. Keep an unmarked original for your own records.

Guides

How to Password Protect a PDFHow to password protect a PDF with AES-256 encryption, and optionally block printing, copying or editing. Free, and the file never leaves your browser.How to Flatten a PDFHow to flatten a PDF so form fields and comments can no longer change, and what flatten PDF actually means. Free, runs in your browser.How to Add Page Numbers to a PDFHow to add page numbers to a PDF: pick a position and format like Page 1 of N, set the start number, download. Free, nothing is uploaded.How to Add an Image to a PDFHow to add an image to a PDF: upload a JPG, PNG or WebP, drag a box on the page, download. Free, no signup, and the file never leaves your device.

Frequently asked questions

How do I add a watermark to a PDF?

Drop the PDF here, type your text or choose an image, set the style and run it. Every page gets the watermark.

Can I use my logo as a watermark?

Yes. Choose an image watermark and set its opacity and rotation.

Does the watermark go on every page?

Yes. It is applied to all pages of the file.

Can someone remove the watermark?

It is part of the page content, so it cannot be deleted like a comment. Nothing makes a watermark impossible to remove, but restricting editing makes it harder.

Does PDFDEN add its own watermark?

No. Your output carries only the watermark you set.