PDF Watermark
Upload a PDF and type a watermark text (e.g. "CONFIDENTIAL" or "DRAFT") to tile it diagonally across every page, then flatten the result into image-only pages so the watermark can't be stripped by deleting a text layer.
The result is automatically flattened to an image-only PDF, so the watermark can't be removed. This means the text of the original PDF is no longer selectable or searchable, by design.
Pourquoi utiliser cet outil ?
A watermark added as removable text or a simple overlay can often be deleted with basic PDF editing tools. This tool tiles your watermark text diagonally across every page, then rasterizes the whole page into a single flat image (same as our PDF Flattener) — the watermark becomes part of the page itself, not a separate layer that can be lifted out. Everything happens in your browser: your file is never uploaded.