I got an mail and i just opend the link in adobe .
But unfortunately that was in german i need to change the language can you please help me to change lang of it please.
We can't change the language of a PDF. Only the original author of the PDF can do that.
If you need an English version of Adobe Reader: http://get.adobe.com/reader/enterprise/
Make sure you have the proper region set at the bottom of the page: