Signing Document Multiple times

Question

I Face Problem When I sign Pdf Document Extracted from SSRS (Microsoft Sql Reporting Service ) multiple times

the new signature make all old signature false in document. Example Shown Problem attached below

Attachment: tetsing_dkdkdkdk_d18d8a69.zip

Mohamed · Accepted Answer

There is an issue related to Digital Signature, when adding multiple signatures to a pdf with pdf version 1.3 that was exported from Microsoft Reporting Services SSRS 2017 and earlier ... the first signature becomes invalid with the below error
There are errors in the formatting or information contained in this signature (support information: SigDict /Contents illegal data

Attachment: testststst_afb5b1b1.zip

Gowthamraj Kumar · Answer

Hi Mohamed, 

We have checked the provided sample on our end, we can add multiple signature in PDF document without breaking the existing one. We have to disable the IncrementalUpdate property for resolving this issue in sample level. Please refer to the below code snippet, 





loadedDocument.FileStructure.IncrementalUpdate = False 

We have attached the sample and output document for your reference, please try the sample on your end and let us know the result. 
Sample: https://www.syncfusion.com/downloads/support/directtrac/general/ze/PdfTesting1569643224 
Output: https://www.syncfusion.com/downloads/support/directtrac/general/pd/InputOutPutproperty87725OutPutproperty39526-679941605 

Please let us know if you need any further assistance in this. 

Regards, 
Gowthamraj K