Add digital signature in Purchase order form in sap public cloud

Hello Experts,

Does anyone cognize however to adhd a integer signature to the Purchase Order signifier successful SAP Public Cloud for India? I searched online but couldn't find immoderate solution. Please fto maine cognize if it's feasible successful SAP Public Cloud, and if so, however to bash it. 

Regards,
Ranjan Panda 

SAP S/4HANA Cloud Public Edition SAP S/4HANA Cloud Public Edition Sourcing and Procurement 

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