Stamp Watermarks (Confidential, Draft, Copy) on PDF Files
Protecting intellectual property, preventing unauthorized document redistribution, and marking review status requires conspicuous visual watermarks across all document pages before distribution.
TabKit PDF Watermarker stamps semi-transparent diagonal text or company watermarks across any PDF file. Configure watermark text (e.g. "CONFIDENTIAL", "DRAFT"), opacity, font size, and color locally with zero cloud uploads and total privacy.
The vector stamping algorithm layers watermarks beneath foreground text or over imagery with precise alpha transparency, maintaining full readability while deterring unauthorized copying.
Frequently Asked Questions
Can I customize the opacity and rotation of the watermark?
Yes. You can adjust the transparency so the underlying document text remains fully legible while prominently displaying the watermark.
Is the watermark stamped across all pages automatically?
Yes. The watermark is applied across all document pages in a consistent diagonal orientation.
Are my confidential PDF files stored or transmitted?
No. Everything executes in client-side WebAssembly and JavaScript memory. Nothing is uploaded to any server.