Adobe interactive forms digital signature
Hi to all,
I'm try to get digital signature data from a signed PDF generated with Adobe interactive forms.
I want to know only if the PDF is signed or not. For the moment I'm not interesting about the CA.
When I call metod set_task_getsignatures a cx_fp_runtime_usage exception is raised.
If I try to test this operation with sample program FP_PDF_TEST_12 the following message is shown:
- ADS connection: "USAGE ERROR: SET_TASK_GETSIGNATURES"
- SECURE ADS connection: "SYSTEM ERROR: com.adobe.ProcessingException: com.adobe.ProcessingException: GetSigatures require a secure connection. Please install the high encryption PDF Manipulation service and enable SSL."
I found a note (https://websmp130.sap-ag.de/sap%28bD1pdCZjPTAwMQ==%29/bc/bsp/spn/sapnotes/index2.htm?numm=752153) that spoke about this problem.
Is this the only way for knowing if a PDF is signed or not?