SLSowmiya Loganathan Syncfusion Team October 21, 2019 08:48 AM
Thank you for contacting Syncfusion support.
We have provided the support for enhanced digital signature PAdES standard into PDF document from the product version 18.104.22.168. As per the PDF 2.0 specification Syncfusion PDF library creates digital signature based on the CMS (Cryptographic Message Syntax) and CAdES (CMS Advanced Electronic Signatures). Please refer the below table for more information about various supported cryptographic standard and it is equivalent PAdES parts.