Add a text watermark to every PDF page.
Your selected files will appear here.
Privacy: Your files are processed inside this browser tab. This tool does not upload or store them on Trezonic.
Enter watermark text and choose font size and opacity. The watermark is centered diagonally across each page.
The built-in engine processes selected files inside this browser tab. Trezonic does not upload or store them. If you arrived from the PDF Hub, its temporary on-device handoff is deleted as soon as this tool reads it.
Yes. Lower the opacity for a subtle watermark.
The local standard PDF font supports common Latin text. Unsupported characters produce a clear error instead of a broken file.