Signature Certificate Viewer
Extract and inspect embedded digital security certificates from signed PDF documents. Audit key lengths, validity dates, subject DNs, and chains offline.
Upload Signed PDF
Drag & drop a signed PDF here to view its certificate chains (.pdf)
How Certificate Inspection Works
Extract and audit digital signature certificates in 3 simple steps.
Select PDF
Upload your signed PDF file to the local analyzer workspace.
Hex Parser
The cryptographic sub-system extracts PKCS#7 / CMS digital signature dictionaries and audits X.509 chains.
Inspect Details
Select any node in the trust path to view algorithms, serial numbers, activation/expiration dates, and SHA fingerprints.
Why audit security certificates?
Many business, medical, or government PDFs contain embedded digital signatures. To verify the origin and legitimacy of these signatures, you must inspect the raw certificate credentials. Our local utility extracts and parses X.509 trust anchors, intermediate authorities, and leaf credentials entirely offline in your browser, enabling you to inspect security attributes without uploading sensitive files.
Trust Chain Hierarchy
Sorts and displays the certificate path from root CA, through intermediates, to the leaf certificate.
Deep Cryptographic Audit
Extracts public key algorithms, key sizes, SHA-1 / SHA-256 fingerprints, and validity dates.
Offline Privacy Sandbox
Local JS execution ensures that your signed documents never leave your computer.
Frequently Asked Questions
Find fast answers to common questions about signature certificates.
Q.What certificates can this tool view?
It extracts standard X.550 public key certificates embedded in cryptographic signature blocks (/Sig field) inside any PDF.
Q.Can I inspect unsigned PDFs?
No. This tool requires a digitally signed PDF with cryptographic widgets to extract certificate stores.
Q.Is this tool secure for sensitive files?
Yes. The parsing is executed 100% client-side in your browser. None of your document data is sent to external servers.
Q.Can I export the certificate details?
Yes. You can download a structured text report containing all DN metadata and fingerprints for any certificate node in the chain.
🛠️ Discover Related Verification & Security Tools
For comprehensive signature auditing and compliance validation, check out our full range of client-side PDF utilities. Cryptographically verify signature envelopes with our Digital Signature Validator, confirm real-time validation compliance via the PDF LTV Validator, overlay graphic signatures using Sign PDF, or unlock security protections with Unlock PDF.
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