Difference between PdfFileSignature VerifySigned and VerifySignature

Aspose.PDF Product Family
1

Hello,
What is Difference between PdfFileSignature.VerifySigned and PdfFileSignature.VerifySignature methods ?
The documentation gives the same information for both methods.
Using Aspose.PDF.Drawing 24.9.0

2

@tfipsrd

The PdfFileSignature.VerifySigned and PdfFileSignature.VerifySignature methods in Aspose.PDF are functionally identical. Both methods perform the same operations and do not differ in their implementation.

Here are some key points regarding these methods:

  1. Functionality: Both methods are designed to verify the signature of a PDF document and will yield the same results when called.
  2. Date Checks: Neither method checks for the expiration date or any other date-related validations. If the specified signature field is not found, an exception will be thrown.
  3. Document Integrity: Both methods confirm that the document has not been altered by comparing hex codes, similar to how Adobe Reader performs signature verification.

If you are using Aspose.PDF version 24.9.0, you can confidently use either method without worrying about differences in functionality.

For further details, you may want to refer to the official documentation or explore additional resources related to signature verification in Aspose.PDF.

Sources:
[1]: Signature verification/validation