Digital Signature Compatibility to Adobe Reader 7.0

[hidasw]

When click example 052 and open in adobe reader 7, for first time adobe reader open document status window and when click signature properties, a verification error tab shown at last tab. give message: Error during signature verification.

Unknown error Support Information: CDSHandler-358

And when i close window and then click on tcpdf signature image, just appear an error windows. Its not happen in older tcpdf version.