Skip to contentAdd a diagonal text watermark to all pages. Adjust opacity and preview live in your browser.
Add a diagonal text watermark to all pages. Adjust opacity and preview live in your browser.
PDF tools in the browser save you from installing desktop software or uploading sensitive documents to unknown servers. Drag a file in, apply the change, and download the result in seconds.
Use this free PDF Watermark whenever you need a reliable result without creating an account or installing software. It loads in one click and works on desktop and mobile browsers.
Tentaco runs this tool in your browser whenever possible. Files you select are processed in memory on your device and are not uploaded to Tentaco servers for standard modes. Close the tab or clear the page after use on shared computers. Features that call external APIs (such as URL fetchers) only send the data required for that request.
Place diagonal text, logos, or stamps on every page or a page range. Adjust opacity, rotation, and position.
Watermarks are drawn as an overlay layer — original page content remains editable in tools that support layered PDFs.
No — processing runs locally in your browser. Your files and inputs do not leave your device unless the tool explicitly uses the network.
