Change Background Color in Pro XI?

[rapidw60200325]

Hello - how can i change the background color of this selected rectangle in the attached screenshot using Adobe Acrobat Pro XI?

[Bernd Alheit]

Change it in the original and re-create the PDF file.

[rapidw60200325]

What do you mean by "change it in the original"?
I am just opening the pdf and then want to change it.
And i can´t find the option where i can do the described change in Pro XI on Windows

[Bernd Alheit]

How have you created the file?

[rapidw60200325]

Honestly i don´t know - i get the pdf form a customer of mine.
And i thought i can simply change the pdf using Adobe Acrobat Pro XI
Is this not the case?