What to know before you start
A centered, translucent text label is added over every page. This version supports basic Latin text. The watermark is a visual label: it does not encrypt your PDF, prevent copying or securely hide information.
Frequently asked questions
Can I use a watermark to redact confidential text?
No. Underlying content remains in the PDF and can still be extracted. Use a dedicated redaction tool to permanently remove sensitive information.
Are my files uploaded to a server?
No. Files are processed in your browser on your device. There is no account to create and no server upload step.
Can I use password-protected PDFs?
Password-protected PDFs are not supported. Use an unprotected copy that you are authorized to edit. Editing a digitally signed PDF can invalidate its signature.