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Calibre ACSM Input plugin
This is a Calibre plugin that allows you to turn ACSM files into EPUB or PDF files without the need for Adobe Digital Editions. It is a full Python reimplementation of libgourou by Grégory Soutadé (http://indefero.soutade.fr/p/libgourou/), and has since been extended by more and more features.
ACSM Input Plugin for Calibre - Copyright (c) 2021-2023 Leseratte10
ACSM Input Plugin for Calibre / acsm-calibre-plugin Formerly known as "DeACSM" Copyright (c) 2021-2023 Leseratte10 This software is based on a Python reimplementation of the C++ library "libgourou" by Grégory Soutadé which is under the LGPLv3 or later license (http://indefero.soutade.fr/p/libgourou/). I have no idea whether a reimplementation in another language counts as "derivative use", so just in case it does, I'm putting this project under the GPLv3 (which is allowed in the LGPLv3 license) to prevent any licensing issues. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. See the "LICENSE" file for a full copy of the GNU GPL v3.
- Versions 0.0.16 and below did sometimes return the wrong eBook (or none at all) when trying to return a book to the library through the "Loaned books" list, if you had multiple active loans from the same distributor / library. This will be fixed with the next release.
Download the plugin and import it into Calibre, then open the plugin settings. The plugin should display "Not authorized for any ADE ID". You now have multiple options to authorize the plugin:
- You can click on "Link to ADE account" and enter your AdobeID credentials to link your Calibre installation to your AdobeID account. This uses up one of your available activations.
- You can click on "Create anonymous authorization" to create an anonymous authorization. Make sure to create backups of that authorization.
- If you have ADE installed and activated on your machine, you can click "Import activation from ADE" to clone the existing activation from your ADE installation.
- If you have used this plugin before, you can click on "Import existing activation backup" to import a previously created activation backup (ZIP) file to restore an activation. This functionality can also be used to clone one activation to multiple computers.
During authorization, the plugin may ask you for the ADE version to emulate. Usually you can leave this setting as it is (ADE 2.0.1).
After you've activated the plugin, make a backup of the activation using the "Export account activation data". Then click "Export account encryption key" and import the resulting file into the DeDRM plugin for DRM removal. If you're using noDRM's fork of the DeDRM plugin, this step will happen automatically. If you don't have the DeDRM plugin set up (or you're not using noDRM's fork and didn't import the key file) you will not be able to read the downloaded books in Calibre due to the DRM.
Once that's done, download an ACSM file from Adobe's test library and see if you can import it into Calibre: https://www.adobe.com/de/solutions/ebook/digital-editions/sample-ebook-library.html
- 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.
- Combined with that I suggest using the DeDRM plugin to make sure that losing your AdobeID doesn't also mean you'll lose access to all your eBooks.
- If you use an anonymous authorization, make sure you make backups of the activation data.
- If you use an anonymous authorization, you have the ability to copy that authorization into an AdobeID account at a later time (by clicking "Connect anonymous auth to ADE account"). This is useful if you have books linked to your authorization that you want to read elsewhere. Same restrictions as with ADE apply - you can only do this ONCE per AdobeID, and only if the AdobeID hasn't been in use elsewhere yet.
- 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.
If a book is marked as returnable (like a library book), you can "return" it to the library using this plugin. Just open the plugin settings, click "Show loaned books" (the option is only visible if you have at least one loaned book that's been downloaded with this plugin), select the book, then click the arrow button to return. Or click the "X" button to just remove the loan record from the list without returning the book.
This makes the book available for someone else again, but it does not automatically get deleted from your Calibre library - you are responsible for doing that after returning a book.
Note: You can only return books that you downloaded with version 0.0.9 (or newer) of this plugin. You cannot return books downloaded with ADE or with earlier versions of this plugin.
As of v0.0.16, the plugin can also authorize an eReader connected to the Computer through USB. For now, this only works with devices that export their
.adobe-digital-editions folder through USB. In order to authorize such an eReader, just open the plugin settings and click "Authorize eReader over USB" (only available if the plugin is authorized with an AdobeID). Then select the eReader in the folder selection dialog. This process does not work with eReaders relying on a specific USB driver for the ADE connection such as the Sony PRS-T2 (and probably some other older Sony devices).
Right now, this process is fairly experimental, and I've only tested this with a Pocketbook reader so far.
Note that this process will use up one of your six mobile/tethered eReader authorizations on your AdobeID. While it is possible to clone a computer activation by exporting it on one computer and importing it on another, this is not possible with eReader authorizations.
In the folder "calibre-plugin" in this repo (or inside the Calibre plugin ZIP file) there's some scripts that can also be used standalone without Calibre. If you want to use these, you need to extract the whole ZIP file.
register_ADE_account.pycan be used to authorize a computer with an ADE account. This creates the three files
devicesalt. These files are in the same format as the ones for the Calibre computer authorization (inside the
plugins/DeACSM/account/folder). A ZIP activation export from Calibre will also contain these three files.
fulfill.pycan be used - with valid ADE account files in the same folder - to turn an URLLink.acsm file into an eBook.
get_key_from_Adobe.pycan be used to contact the Adobe server and download the DER key file for a given AdobeID to import into a DeDRM plugin. Just input your credentials and this script will output the DER file that can be used with DeDRM to decrypt books for this AdobeID. This works independantly from the account activation files or from this plugin, so it's a good way to get your AdobeID decryption key, especially if you're on Linux and it's too difficult to export the keys from ADE running inside Wine. This process does not use up one of your six device activations.
Though, generally it's recommended to use the Calibre plugin instead of these standalone scripts. Except for maybe the
get_key_from_Adobe.py script if you want to remove DRM from existing eBooks without having to extract the key from ADE.
To-Do list for the future?
- Support to copy an authorization from the plugin to an ADE install
- Support for multiple independant authorizations (with an easy way to switch between them)
- Import a JoinedAccount authorization from ADE (ADE2.0+)
- Import multiple account authorizations from ADE (ADE2.0+)
- Support to add an AdobeID to an eReader without replacing the existing one
- Support for Adobe's "auth" download method instead of the "simple" method (ADE2.0+)
- Support the JoinAccounts, ActivateLinkedAccounts and GetCredentialList functions to allow for merged AdobeIDs (ADE2.0+)
- Support the SyncToDevice function to auto-download new books from ADE into Calibre (ADE4.0+)
- Add small link in settings window that will open a popup with all the expert stuff like de-auth and account joining.