Hi Dusan Marko,
We are sorry for the trouble. As described you want to change the language of the Adobe Acrobat DC Standard.
Please try the steps below and see if that helps.
Go to Edit > Preferences > Language
Under Language pane
Click on the drop down for Application Language and select the option Choose at Application Startup
Click Ok and Close the application
Launch Acrobat again, it will give you a drop down to select the language
If in case, you do not see the language which you want and is available with Acrobat
Then go to Control Panel
Add or Remove Programs
Select Acrobat Pro from the list and click on Change
From Acrobat dialog box, you will get 3 option Modify, Repair or Remove
Select Modify and next
Then on the next window
Click on the + sign before Languages
Click on the down arrow for the language you would like to install and select the 2nd option and Install
For more information, you may also refer to the help article (https://helpx.adobe.com/acrobat/kb/change-language-settings-of-acrobat.html)
Let us know how it goes
Hey, Jakob here
What to do if changing the default install language and reinstalling, does not work?
Language change has been a problem ever since i started using your software 10 years ago. I find it hard to understand why it keep on being an issue. Please i beg you, just make a setting were i can lock everything to english forever, and make it so that Adobe has to ask at least 10 times before any program is installed in another langugae than english. Because right now, ya'll are changing my language setting from day to day, and program to program.