PDF Security & Protection

This category includes tools to protect, secure, and manage access to PDFs.

• Add password to PDF – Encrypt a PDF with a password to prevent unauthorized access.
• Add stamp to PDF – Insert custom stamps (e.g., “Confidential,” “Approved”) into a PDF.
• Add watermark to PDF – Overlay a watermark (text or image) on a PDF to mark ownership or confidentiality.
• Auto redact PDF – Automatically detect and remove sensitive information from a PDF.
• Change PDF permissions – Modify document permissions to restrict editing, copying, or printing.
• Manual PDF redaction – Manually black out or remove confidential text from a PDF.
• Remove certificate sign from PDF – Remove digital signatures from a signed PDF.
• Remove password from PDF – Decrypt and remove password protection from a PDF.
• Sanitize a PDF – Permanently remove hidden metadata, comments, and sensitive data from a PDF.
• Sign a PDF – Digitally sign a PDF with a signature or drawing.
• Sign a PDF with certificate – Apply an official digital certificate to authenticate a PDF.
• Validate PDF signature – Check if a digital signature in a PDF is valid and secure.