In the v.3.4.7 features I found
'Possibility to apply columns settings for the PDF invoice'
 
How do I do it?
 
Thanks

Dear Ersito,
 
This feature means that you can configure what columns to display on the PDF invoices. You can make appropriate settings via your Admin panel (Administration > Products > Products Settings > Cart Columns section).
 
With kind regards,
ViArt Support Team