Prepare PDFs for sharing with password protection, redaction, visible signatures, watermarks and document comparison. Choose protection that matches the task: restrict access, remove sensitive information or add a visible mark. These operations serve different purposes and are not interchangeable.
Draw, upload or type your signature and add a date.
Remove private information before sharing your PDF.
Add a logo, text watermark or status stamp across your pages.
Clear hidden document properties. Keep your pages intact.
Choose what to clean. Share a copy with fewer hidden details.
Remove PDF password protection using the document password when required.
Protect your PDF with a password and control file permissions.
Make form values and annotations permanent parts of your PDF pages.
Two versions. A clearer view of what changed.
Prepare a form containing personal details, mark an internal draft or compare a revised report before sharing it. Decide whether you need access control, permanent content removal or a visible signature, then inspect the exported PDF.
Protect PDF adds an opening password and available permission settings. Keep the required password separately. Unlock PDF is for documents you are authorized to use and may require the existing password; it does not provide a way to recover an unknown opening password.
Use Redact PDF or the Redact feature in Edit PDF to remove marked content from the finished copy. Cropping, white rectangles and watermarks can leave the source information in the file. Review the exported document, including unmarked pages, before sharing confidential material.
Sign PDF adds a visible signature; Watermark PDF places a text or image mark. Compare PDF helps review changes between two versions, while Flatten PDF makes supported interactive content part of the page. A visible signature is not a certificate-backed digital signature, and a watermark does not prevent copying.
A few answers to help you choose the right tool.
Use Protect PDF, choose the available opening-password and permission settings, and save the result. Keep the required password separately and check that the protected copy opens as expected.
No. Use it only for PDFs you are authorized to access. A document encrypted with an opening password requires that password; the tool does not provide password recovery or guessing.
No. An ordinary shape or crop can leave underlying text and images in the file. Use Redact PDF for permanent removal and inspect the finished copy before sending it.
No. It places a visible electronic signature on the PDF. It does not issue an identity certificate or add a certificate-backed digital signature. Choose a suitable signing service if that is required for your workflow.
No. A watermark is a visible mark for attribution, review or document status. It is not access control or guaranteed tamper protection, even when the watermark text is rendered as an image.
Compare PDF offers visual comparison that can help inspect scanned pages as well as other PDFs. Text comparison needs usable text. It accepts exactly two input PDFs, each up to 25 MB and 750 pages.
Some tools work on your device; others process files on our servers. Server-side source files, temporary files and generated results are deleted within 30 minutes after processing finishes. We do not share your files or their contents with third parties or use them to train AI models.
