Verify a Deliverable

Verify the cryptographic signature on SignatureAPI PDF deliverables using public key certificates.

All SignatureAPI PDF deliverables are sealed with a cryptographic signature. You can verify that a deliverable was generated by SignatureAPI and has not been altered since it was issued.

The signature is created using one of these public key certificates:

Certificate 0FE1

Serial Number	0FE117EE6AF5B1EECC367D06D7845D17
SHA-256 Fingerprint	843AA9BB894A3C9956F6CD3F06E0D6E9E43F0A192849977F747F918A1C4F4F7E

Download .cer file

Certificate 2979

Serial Number	2979AC8352AC3B82B72EAA318FFFA49D
SHA-256 Fingerprint	815B8B425132FEB359334E4589CC8C7FE78C3F6DC976AB403825DFAC4F0B8CA2

Download .cer file

Certificate 2E87

Serial Number	2E8766982802E57E49D02FA3907DCDCE
SHA-256 Fingerprint	CBD80A0B0B3F212C30590AF00DE75692D11CA9EA49C9B86FD82441BBB0A95BFA

Download .cer file

Certificate 3C2A

Serial Number	3C2A804C599D18452298B145296FD433
SHA-256 Fingerprint	1B:F6:EA:62:5A:52:E5:36:B2:D9:0F:DA:8B:28:0A:41:58:11:80:7D:4F:B9:24:25:3A:A2:E1:84:C1:30:CC:46

Download .cer file

Certificate 533E

Serial Number	533ECFDBD0D3D876C4D452E2268A3F35
SHA-256 Fingerprint	DC0B3B18804DC36ECE893C4A4D1C03F156C1D14F5991599DD85DFB9F6D1F7F60

Download .cer file

Certificate 5DC2

Serial Number	5DC2DACB8E8B3A32A387FBBED05FD79C
SHA-256 Fingerprint	0638C6E40EB36D081A1FF578BCDB26799C96716CE4C021F3DB9B9CDC79CB0497

Download .cer file

Verifying in Adobe Acrobat

The easiest way to verify a deliverable is to open it in Adobe Acrobat Reader (free) or Adobe Acrobat (paid).

Step 1: Check that the signature is valid.

You should see a signature icon with a green check mark and the message “Signed and all signatures are valid.”

Step 2: Open the Signature Panel.

Click the signature panel to review the signer identity and confirm that the certificate matches one of the SignatureAPI certificates listed above. This confirms the deliverable was generated by SignatureAPI and has not been modified since it was sealed.