Problems with .acsm

"I don't get an e-book but always a file with the name: URL.acsm" Or: "My e-book is only 1.5 kB in size" When you buy a DRM-protected title, you initially don't get the e-book itself, but a file with the extension .acsm. This file contains instructions for the Adobe Digital Editions program, which will download and manage your protected books. Install the Adobe Digital Editions program, which you can download for free from the Adobe website, and open the .acsm file with this software.