Add a text watermark
Add text to every page with configurable size, angle and opacity.
100% browser-sideNo document upload
Privacy
Processing happens locally in your browser with pdf-lib. Selected files are not uploaded to BAOI or a conversion API.
Questions about this tool
What happens to the original file during adding a watermark?
Work on a copy and keep the original until the generated PDF has been reviewed. The tool should not become your only source copy.
What should I verify after adding a watermark?
Open the result and check page count, order, orientation, dimensions, visual rendering and any links or interactive elements that matter.
Can the operation affect print quality or file size?
Yes. Resizing, compression, conversion and page composition can change dimensions, image quality or file size; compare the output with the intended use.