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Leseratte_10 · 09-25-2021, 10:44 AM

ACSM import support for Calibre

This plugin is a replacement for Adobe Digital Editions (ADE) which allows you to turn an ACSM file into an EPUB or PDF just like ADE would.

A couple months ago, Grégory Soutadé created an open-source ADE replacement library (libgourou) in C++ which can be used to "convert" ACSM files into EPUB or PDF files - see the thread https://www.mobileread.com/forums/sh...d.php?t=340479

A couple days ago, I noticed that library and started to look at how that worked. First I only managed to make a small Calibre plugin that just executes his library / binary, so the first version was Linux-only, but then I was able to completely reimplement the libgourou library in native Python as a Calibre plugin.

This means, that Windows, Linux, and Mac users can just add this FileType plugin to Calibre, enter their AdobeID credentials in the plugin settings, and then just drag-and-drop an ACSM file into Calibre and it'll turn into an EPUB or PDF.

The source code, if you want to take a look, can be found here: https://github.com/Leseratte10/acsm-calibre-plugin

Couple important notes:

I would suggest creating a new dummy AdobeID to use for Calibre so just in case Adobe detects this and bans you, you don't lose your main AdobeID.
I recommend using noDRM's DeDRM fork together with this plugin. Using the old versions from Apprentice Harper can cause various issues
This software is not approved by Adobe. I am not responsible if Adobe detects that you're using nonstandard software and bans your account. Do not complain to me if Adobe bans your main ADE account - you have been warned. So far, none of my test accounts have been banned, but you never know ...

How to setup:

Download the plugin from this post (or from the Calibre Plugin list) and import it into Calibre, then open the plugin settings.

You now have four different ways to authorize / activate the plugin:

You can click on "Link to ADE account" and enter your AdobeID credentials. This will use up one of your available activations.
If you have ADE installed and activated, you can click "Import activation from ADE" to import the activation from Adobe Digital Editions.
You can click on "Create anonymous authorization" to authorize the plugin without an AdobeID. Make sure to create backups if you do this.
You can import an authorization backup ZIP file by clicking on "Import existing activation backup" if you have a backup from a different machine or from a previous install.

Once you activated the plugin using one of the four methods, click "Export account activation data" and save the data somewhere. Make enough backups of this, if you have an anonymous authorization you'll need this to restore the data if you reinstall your OS or move to another computer. If you are using an AdobeID, you can use this data to restore the activation without using another one of your available authorizations.

Now download an ACSM file from Adobe's test library ( https://www.adobe.com/de/solutions/e...k-library.html ) and see if you can import it into Calibre and if it turns into a readable EPUB or PDF file.

Version History:

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