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Skip to contentAdd a diagonal text watermark to all pages. Use Tentaco PDF Watermark to process the file in your browser and download the result — no account.
Full tool — runs in your browser. No sign-up required.
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Add a diagonal text watermark to all pages. Everything runs locally in your browser — your data never leaves your device.
Load your file into Tentaco PDF Watermark. Standard processing runs locally in your browser — contents are not sent to Tentaco servers for that path.
The primary button opens the matching studio mode so you can start without an account. People often search for: pdf watermark, watermark pdf, pdf wasserzeichen.
Open PDF Watermark via the studio button (direct mode).
Select or drop your file.
Adjust options and review the preview or output.
Download the result and re-run if you need another pass.
File transfer: No. Processing: local in the browser. External APIs: none. Temporary storage: memory. Permanent storage: only after you download.
LocalThis tool processes data locally in your browser. Tentaco does not receive your file contents for this mode.
PDF Watermark accepts the file types listed in the tool UI. Convert unsupported formats first or use a related Tentaco tool.
No. PDF Watermark processes the standard mode locally in your browser; Tentaco does not receive your input for that path.
Practical limits depend on your device and browser memory. Very large files may be slow or fail in PDF Watermark — shrink the file and retry.
After processing, PDF Watermark shows a download action. Save locally; Tentaco does not auto-archive to a cloud library.
Yes, PDF Watermark runs in mobile browsers. For very large media, desktop is often more comfortable.