Courier vouchers are issued in pdf format. In order to print them automatically on the default printer, a pdf printer software must be set in courier.ini file (in EMDI root folder). Any pdf reader that supports print via line command can be easily used.
For example:

 

Ghostscript

To print automatically it must be configured in the courier.ini file, located in the main EMDI folder:

for help:

PDF24

for help:

https://creator.pdf24.org/manual

Foxit Reader

for help:

Bullzip PDF Printer

Note about the printer name

The name of the printer used with RDP is changed, such as Test Printer (redirected 1), Test Printer (redirected 2). The asterisk * is the text we want to ignore.
To use this feature, we place the printer name in brackets.

In the example, we write the name of the printer up to the point where it does not change, and at the end we put the * symbol and brackets on the left and right.