How to find if PDF have Third party Digital Signature and Self Signed Digital signature

[sreenath.techie]

How to find if PDF contains …

1. Third party Digital Signature
2. Self Signed Digital signature

[system]

Hello, I’m Ron, an automated tech support bot

While you wait for one of our customer support representatives to get back to you, please check out some of these documentation pages:

Guides:

• Adding a certified signature field to a PDF on Cross-Platform (Core) - About certifying a PDF/A document
• API for digital signatures on Cross-Platform (Core)
• Add a DocTimeStamp signature on Cross-Platform (Core) - Adding Trusted Certificate
• Code samples for adding digital signatures to PDFs on Cross-Platform (Core)

APIs:

• Class PDFDoc - GetDigitalSignaturePermissions()
• Class DigitalSignatureFieldIterator
• Class DigitalSignatureField - HasCryptographicSignature()

Forums:

• Removing Digital Signatures From a PDF Document
• How to Obtain the Digital Signature From a Signed PDF Document?
• How do I find a digital signature’s byte offset in the pdf?

[shakthi124]

Hello,

To get more information about your use case, can I ask why this requirement is important for your workflow?

Thank you in advance for the additional information.