“Hi could you please show me how to convert ACSM file to Kindle Mobi eBooks? I’ve purchased some eBooks and was given some ACSM files. How can I turn these ACSM files into Mobi eBooks for Kindle?”

Well, in this guide, you will learn how to convert ACSM file to Mobi eBooks for Kindle eReader. We would like to offer you different ACSM to Mobi converters to do this. Check the below and get the one you like.

Part 1: Brief Introduction to ACSM and Mobi

Firstly, let’s take a brief look on ACSM file and Mobi eBooks. Short for Adobe Content Server Manager, ACSM file is actually not an eBook file that contains eBooks. Instead, it offers you download link to download eBooks you’ve purchased and authorize you to download the same eBook file on different devices that have Adobe Digital Editions software installed under the same ADE account. Adobe Digital Editions is the program that has the rights to open ACSM file. Once ADE sees the ACSM file, it will automatically download ACSM file to PDF or EPUB file, turning ACSM file into real eBooks on your ADE.

Log in Adobe Digital Editions app

On the other hand, a file with the MOBI file extension is a Mobipocket eBook file. They’re used for storing digital books and are designed specifically for mobile devices with low bandwidth. There are quite a few notable free programs that can open MOBI files including Calibre, Stanza Desktop, Sumatra PDF, Mobi File Reader, FBReader, Okular, and Mobipocket Reader. Also, there are several eReaders that could read Mobi eBooks like Amazon Kindle and many smartphones.

Part 2: How to Convert ACSM to Mobi with Calibre

Calibre is a powerful and easy to use e-book manager. Plus DRM removal plugin, it could perform as a DRM removal software tool and eBook converter to help eBooks fans to remove DRM protection from eBooks and convert DRM protected books to DRM free eBook files for reading on any eReader. Before you could convert ACSM file to Mobi with Calibre, you need to firstly turn ACSM file to DRM protected ePub or PDF file on your Adobe Digital Editions. Follow the below steps to learn how to do this:

1. Install Adobe Digital Editions (ADE) on your computer.

2. Log in the ADE with your Adobe account.

3. Drag the .ACSM file into ADE.

4. ADE would convert ACSM to EPUB eBook file.

5. Then you need to use EPUB DRM Removal to remove DRM from the EPUB and convert the downloaded ePub or PDF eBook from ACSM file to Mobi format.

Then, follow the below steps to learn how to convert

Log in Adobe Digital Editions app

1. Install Calibre and its DRM-Remover plugin.

2. Launch Calibre and click the Preference button to select the “Change Calibre behaviour” option, then scroll down to the advanced section before clicking on Plugins.

3. A new screen will pop up, and you need to click the “Load plugin from file” button at the bottom right corner. Choose the plugin you just downloaded.

4. If you’re taking books off your e-Reader, plug it into your PC via USB. Using File Explorer, drag and drop the e-Books from your e-Reader into Calibre’s main window, and all that nasty DRM will be stripped out.

5. Right click the book title in the main Calibre window, and select Convert books > Convert Individually.

6. A new window will open, laden with dozens of options to tailor the output. Change the Output format in the top right to Mobi, then click OK in the bottom right.

7. After that hit the convert button to get Mobi eBooks output.

Actually, it won’t be easy for you to convert ACSM file to Mobi eBooks with the help of Calibre. The operation is too complicated. Therefore, we recommend you Leawo Prof. DRM, which requires no extra plugins and works easily.

Part 3: How to Convert ACSM File to Mobi with Prof. DRM

Besides converting ACSM file to Mobi free with Calibre, you could also use Leawo Prof. DRM to convert ACSM file to Mobi eBook files. Actually, you will find that Leawo Prof. DRM is much better than Calibre after you check the below guide. As a professional DRM removal program that could remove DRM protection upon Adobe Digital Editions eBooks and then convert Adobe Digital Editions eBooks to DRM-free ePub, Mobi, and other formats, Leawo Prof. DRM could help you easily convert ACSM file to Mobi smoothly and quickly. This program is extremely easy to use.  

Download and install Leawo Prof. DRM. Follow the below steps to learn how to convert ACSM to PDF or other eBook formats.

Step 1: Log in Adobe Digital Editions

Launch Adobe Digital Edition software on your computer and log in with your account. Drag the ACSM files into your ADE as mentioned above. And then you will find that all ACSM files would be downloaded into real eBooks on your Adobe Digital Editions.

Log in Adobe Digital Editions app

Step 2: Add eBooks from Adobe Digital Editions

Launch Leawo Prof. DRM and then click the “Add File” button on the interface. On the left sidebar, you could see an “Adobe” tab, which includes all eBooks on your ADE. Choose the eBooks downloaded via ACSM files for converting. And then click the “Add” button.

Add Adobe eBooks

Step 3: Set output format

Click the pencil icon in each loaded eBook title and then choose Mobi as output format. You could check “Apply to all eBook files” option to set Mobi format as output format for all loaded eBooks.

Set output format

Step 4: Set output directory

Then, in the “Output” box at the bottom, set output directory.

Set output directory

Step 5: Convert ACSM file to Mobi

Finally, click the “Convert” button at the bottom right corner. This DRM removal program would convert ACSM file to Mobi file immediately.

Convert ACSM file to PDF

After converting, you could then open the folder you’ve set above and then find the converted ACSM files (now in Mobi format). Then you could freely transfer these Mobi eBook files to your Kindle for unlimited reading.