This tool adds a custom text watermark to every page of a PDF. You can control the text, colour, size, opacity, and position. No upload required.
Who needs this tool?
Businesses protecting confidential documents, photographers watermarking portfolios, educators stamping draft assignments, and anyone marking PDFs as "Confidential" or "Draft".
What problem does it solve?
Shared PDFs can be misused or distributed without permission. Adding a watermark signals ownership and discourages unauthorised redistribution.
How to Use
Upload your file.
Choose your options.
Click the action button.
Download the result.
Frequently Asked Questions
This tool adds a custom text watermark to every page of a PDF. You can control the text, colour, size, opacity, and position. No upload required.
Businesses protecting confidential documents, photographers watermarking portfolios, educators stamping draft assignments, and anyone marking PDFs as "Confidential" or "Draft".
Shared PDFs can be misused or distributed without permission. Adding a watermark signals ownership and discourages unauthorised redistribution.
Yes. You can set any text (e.g. "CONFIDENTIAL", your company name, or a date), choose the colour, adjust opacity from 10–100%, set font size, and position it diagonally, horizontally, or in a corner.
Yes. The watermark is applied to every page in the PDF automatically.
A basic text watermark can be removed by someone with PDF editing software. For stronger protection, combine the watermark with PDF password locking.
Yes. PDFdukan is 100% free with no hidden charges, no subscription, and no credit card required.
No account is needed for basic use. Sign in only if you want to save files directly to your Google Drive.
No. All processing happens entirely inside your browser using JavaScript. Your files never leave your device and are never seen by any server.
Yes. All PDFdukan tools work in any modern browser — Chrome, Safari, Firefox, Edge — on phones, tablets, and computers.