Error: "Following disk images could not be opened" "Image: Acrobat Pro_11_web_W. Reason: image data got corrupted". Please help.

Have paid for Adobe Acrobat Professional XI Full. Got the link and have downloaded the dog file. But while opening the dmg getting an error which is not listed in any of the listed one in support. It says "Following disk images could not be opened" "Image: Acrobat Pro_11_web_W. Reason: image data got corrupted". Please help.