This article explains how to open ACSM files, what they are used for, and provides troubleshooting tips if you encounter problems.
How to open and convert ACSM to PDF
Download Adobe Digital Editions to open ACSM files on Windows, macOS, Android, and iOS devices. Once the book is downloaded on one device, the same book can be downloaded to any other device using Adobe Digital Editions under the same user ID.
Use the Help > Authorize Computer menu option in Adobe Digital Editions to connect your eBook vendor account to Adobe Digital Editions. This procedure allows you to transfer content between multiple computers and mobile devices. You do not need to repurchase the books if you reinstall or upgrade your computer's operating system.
Since an ACSM file is not an eBook, it cannot be converted to another eBook format such as PDF, EPUB, etc. The ACSM file is just a simple text file that describes how to download the actual eBook. The eBook itself may be delivered as a PDF or another format.
