VM 3.0.9.6: UTF-8 characters replaced by ? in invoice and delivery note

[stawebnice]

Hi,

I have an eshop in VM 3.0.9.6 and Czech language and when I print the invoice and delivery note from the list of orders, some Czech characters are replaced by ? :
examples: http://imtp.me/a00y02lj3

characters that are replaced: č,ř,š,ě,ů,

I am attaching example of invoice and delivery note

Can you possibly advise how to fix this?

[ironbone]

The same problem in VirtueMart 3.4.2 - Polish language

[stawebnice]

Hi,
change the font in Virtuemart -> Shop -> Invoice/email ->   switch to Free Sans Mono font

[ironbone]

When I do it I get the problem described here: https://forum.virtuemart.net/index.php?topic=142984.msg504960#msg504960
This is the error: TCPDF ERROR: Could not include font definition file: freemono
I use the newest versions of Joomla and VirtueMart

[ironbone]

Still the same problem in 3.6.0

[ironbone]

The problem is not VM. Another plugin load anover instalation of  tcpdf library before the VM does.
In my case it was System - DPCalendar plugin