Our free PDF protection tool allows you to add password protection watermarks to your sensitive documents quickly and easily. Whether you need to mark confidential business reports, legal documents, personal files, or any sensitive information, our online tool makes the process simple and secure. The password is visibly embedded on each page, making it clear that the document is protected and displaying the access password.

The PDF protection tool adds a clear password watermark stamp on every page of your document, along with protection metadata. All processing happens directly in your browser using client-side processing, which means your files never leave your device. Best of all, it's completely free with no registration required, no file size limits, and works with any PDF document. The protected PDF can be opened in any PDF reader, but the password watermark serves as a visible indicator of protected content.