Step 1. Launch Prof. DRM to enter into iTunes DRM remover

Since different module is expert in removing different types of DRM, you need to select iTunes DRM Remover to remove your M4B Audiobook. (Note: if you need to convert AA/AAX Audible audiobook, you can select the module of “Audible DRM Remover”).

Step 2. Add M4B Audiobook to the Program

After entering the main interface of iTunes DRM Remover, you can click “Add Files” button on the sub-menu bar to add the M4B audiobook on the pop-up “Add File” panel. Choose at least one audiobook file and click “Add” to begin importing from iTunes into Prof. DRM. Or you can directly drag and drop the target audiobook files to the middle of program interface named “Drag iTunes Files Here”.

Step 3: Choose Channel, Sampling Rate and Bit Rate

After importing the audiobooks, you can view the files under the category “Audio Book” . And then you can choose an audiobook file and click the “edit” button to freely choose Channels, Sampling Rates and Bit Rates for keeping in the output MP3 audio file.

Step 4: Set Output Directory

Click “…” button at the bottom of “Home” list to set an output directory for containing output MP3 file.

Step 5: Remove DRM from iTunes Audiobook and convert M4B to MP3

Once all the settings are done, click the blue “Convert” button at the bottom for removing DRM from iTunes M4B and then converting to DRM-free MP3. After a while, the iTunes DRM removal and conversion process will be completed.

Note: Before conversion process takes place, you will be asked to authorize the computer for playing the iTunes audiobook if you have not yet authorized the computer.

Step 6: Check the converted files

Once the conversion finishes, you can click “Converted” tab to enter the interface which displays all the converted files. And then you can click the “Open file” option at the end of a target file to open the output MP3 file. Alternatively, you can make use of the quick searching bar at the bottom for fast locating.