Hi Aлександро,
As per the description above, you want to change the language of Acrobat Pro DC from English to Russian, Is that correct?
Please try the following steps:
- Go to Edit>Preferences>Language>Under Language pane select Choose at Application Startup.
- Click Ok and Close the application.
- Launch Acrobat again and it will give you a drop down to select the Language and you can choose Russian.
In case you don't see the language which you want is available with Acrobat, then navigate to Control Panel(Assuming you are using Windows machine)> Add or Remove programs>Select Acrobat pro from the list and click on Change> from Acrobat dialog box, you will get 3 options Modify, Repair or Remove > Select Modify and next> Click on + sign before languages> Click on the down arrow for the language you want to install and select the 2nd option and install.
Hope this helps, and keep us posted with the results.
Regards,
Anand Sri.