See this new example for signing XML E-invoices for Paraguay — SISTEMA INTEGRADO DE FACTURACIÓN ELECTRÓNICA NACIONAL (SIFEN).
AutoIt Paraguay eInvoice XML Digital Signature
C Paraguay eInvoice XML Digital Signature
Python Paraguay eInvoice XML Digital Signature
C++ Paraguay eInvoice XML Digital Signature
C# Paraguay eInvoice XML Digital Signature
DataFlex Paraguay eInvoice XML Digital Signature
Delphi Paraguay eInvoice XML Digital Signature
Visual FoxPro Paraguay eInvoice XML Digital Signature
Go Paraguay eInvoice XML Digital Signature
Java Paraguay eInvoice XML Digital Signature
Objective-C Paraguay eInvoice XML Digital Signature
Perl Paraguay eInvoice XML Digital Signature
PHP ActiveX Paraguay eInvoice XML Digital Signature
PHP Paraguay eInvoice XML Digital Signature
PowerBuilder Paraguay eInvoice XML Digital Signature
PowerShell Paraguay eInvoice XML Digital Signature
Swift Paraguay eInvoice XML Digital Signature
Tcl Paraguay eInvoice XML Digital Signature
VB6 Paraguay eInvoice XML Digital Signature
VB.NET Paraguay eInvoice XML Digital Signature
VBScript Paraguay eInvoice XML Digital Signature
Xojo Paraguay eInvoice XML Digital Signature