Certify PDFEnterprise
Certify a PDF with a digital certificate. Enterprise plan required. Secure and fast.
Secure processing
Files deleted after 1 hour
How to Certify PDF
1
Upload your PDF
2
Select certification level
3
Apply certificate
4
Download the certified PDF
Frequently Asked Questions
1What's the difference between signing and certifying?
Certification sets the allowed change level (no changes, form fill only, or annotations). Signing just proves identity.
Why Use ZiaSign's Certify PDF Tool?
ZiaSign's PDF certification tool applies a digital certificate that controls what modifications are allowed after certification. Choose no changes, form-fill only, or annotations only. Stronger than standard digital signatures.
Set allowed modification levels after certification
Stronger than standard digital signatures
Tamper-evident with certificate validation
Enterprise-grade document control
Also known as: certify pdf · pdf certification · certified pdf document · pdf digital certificate
Join 50,000+ Users — Free Account, All 119 Tools
Unlock 100 MB uploads, batch processing, AI-powered tools, and advanced contract management — completely free.