I'm not sure if this is a problem with this plugin, Calibre or my setup, but I can no longer add epubs via acsm files in Calibre. I tell Calibre to Add a book and it looks like just the acsm file is brought in to Calibre. There's no epub. I've tried 3 different acsm files (2 of which worked last month). The Book Details window has a generic cover and the following:
Title: TheSubtleArtofFoldin 9781250382085 11842667
Formats: ACSM
Folder: Book files
Title sort: TheSubtleArtofFoldin 9781250382085 11842667
Date: 07 Apr 2026
uuid: 68664fcd-4425-4a4b-b53d-cb15e75aa9a2
Id: 1068
Modified: 07 Apr 2026
Size: <0.1 MB
Pages: None
I'm on Bazzite (linux) with Calibre 9.6 (flatpak) and ACSM Input 0.0.16.
EDIT: I've also now downloaded 2 different sample books from:
https://www.adobe.com/solutions/eboo...k-library.html
and neither one will import at all. The Adding Books dialog pops up and sits there at 0% until I abort it. EDIT 2: Oops. I let it try for longer and it finally imported. But, it's still just the acsm file and not the actual book.
EDIT 3: Sorry for all the edits. But, I found how to get the logs. Here it is, though the 1st line seems to tell it all (though I have no idea what to do about that):
Code:
Qt: Session management error: Could not open network socket
ApplicationPaletteChange event ignored
Using calibre Qt style: True
calibre Debug log
calibre 9.6 embedded-python: True
Linux-6.17.7-ba29.fc43.x86_64-x86_64-with-glibc2.42 Linux ('64bit', 'ELF')
('Linux', '6.17.7-ba29.fc43.x86_64', '#1 SMP PREEMPT_DYNAMIC Wed Mar 25 07:35:02 UTC 2026')
Python 3.14.2
Interface language: None
EXE path: /app/lib/calibre/bin/calibre-debug
Successfully initialized third party plugins: DeACSM (0, 0, 16) && DeDRM (10, 0, 3) && Diaps Editing Toolbag (0, 5, 0) && EpubCheck (0, 2, 6) && Goodreads (1, 8, 4) && Kobo Utilities (2, 27, 1) && Modify ePub (1, 8, 9) && Quality Check (1, 14, 7) && ScrambleEbook (0, 6, 0)
calibre 9.6 embedded-python: True
Linux-6.17.7-ba29.fc43.x86_64-x86_64-with-glibc2.42 Linux ('64bit', 'ELF')
('Linux', '6.17.7-ba29.fc43.x86_64', '#1 SMP PREEMPT_DYNAMIC Wed Mar 25 07:35:02 UTC 2026')
Python 3.14.2
Interface language: None
EXE path: /app/lib/calibre/bin/calibre-debug
Successfully initialized third party plugins: DeACSM (0, 0, 16) && DeDRM (10, 0, 3) && Diaps Editing Toolbag (0, 5, 0) && EpubCheck (0, 2, 6) && Goodreads (1, 8, 4) && Kobo Utilities (2, 27, 1) && Modify ePub (1, 8, 9) && Quality Check (1, 14, 7) && ScrambleEbook (0, 6, 0)
QPA platform: xcb
devicePixelRatio: 1.5
logicalDpi: 96.0 x 96.0
physicalDpi: 72.80274999999999 x 72.78805970149253
[0.00] Starting up...
[0.00] Initializing db...
[0.02] db initialized
[0.02] Constructing main UI...
[0.05] [DEBUG] [koboutilities.config:<module>:73] CreateNewCustomColumn is supported
qt.webengine.QWebEngineView OK
[0.22] [DEBUG] [koboutilities.action:KoboUtilitiesAction.genesis:120] Running in optimized mode
[0.49] GUI main window shown
[0.50] [DEBUG] [koboutilities.config:get_library_config:646] library_config: {
"SchemaVersion": 1,
"profiles": {
"Carol's Forma": {
"customColumnOptions": {
"currentReadingLocationColumn": "#cesreadloc",
"lastReadColumn": "#ceslastread",
"percentReadColumn": "#cespercentread",
"ratingColumn": "#cesrating",
"restOfBookEstimateColumn": "",
"timeSpentReadingColumn": ""
},
"forDevice": "N782120007529",
"profileName": "Carol's Forma",
"storeOptionsStore": {
"doNotStoreIfReopened": false,
"promptToStore": true,
"storeIfMoreRecent": true,
"storeOnConnect": true
},
"updateOptionsStore": {
"doEarlyFirmwareUpdate": false,
"doFirmwareUpdateCheck": false,
"firmwareUpdateCheckLastTime": 0
}
},
"Dave's Forma": {
"customColumnOptions": {
"currentReadingLocationColumn": "#dalreadloc",
"lastReadColumn": "#dallastread",
"percentReadColumn": "#dalpercentread",
"ratingColumn": "#dalrating",
"restOfBookEstimateColumn": "",
"timeSpentReadingColumn": ""
},
"forDevice": "3565ce9f-f108-490e-9838-efdd9fbbe419",
"profileName": "Dave's Forma",
"storeOptionsStore": {
"doNotStoreIfReopened": false,
"promptToStore": true,
"storeIfMoreRecent": true,
"storeOnConnect": true
},
"updateOptionsStore": {
"doEarlyFirmwareUpdate": false,
"doFirmwareUpdateCheck": false,
"firmwareUpdateCheckLastTime": 0
}
},
"Dave's Sage": {
"customColumnOptions": {
"currentReadingLocationColumn": "#dalreadloc",
"lastReadColumn": "#dallastread",
"percentReadColumn": "#dalpercentread",
"ratingColumn": "#dalrating",
"restOfBookEstimateColumn": "",
"timeSpentReadingColumn": ""
},
"forDevice": "a68f551c-a48e-4fd2-8fa1-6e3f836094fc",
"profileName": "Dave's Sage",
"storeOptionsStore": {
"doNotStoreIfReopened": false,
"promptToStore": true,
"storeIfMoreRecent": true,
"storeOnConnect": true
},
"updateOptionsStore": {
"doEarlyFirmwareUpdate": false,
"doFirmwareUpdateCheck": false,
"firmwareUpdateCheckLastTime": 0
}
}
},
"readingPositionChangesStore": {
"selectBooksInLibrary": true,
"updeateGoodreadsProgress": false
},
"shelvesColumn": null
}
[0.50] [DEBUG] [koboutilities.action:KoboUtilitiesAction.set_toolbar_button_tooltip:180] setting to text='Utilities to use with Kobo ereaders
Driver: KoboTouch'
[0.56] main UI initialized...
[0.56] Started up in 0.56 seconds with 2 books
Running file type plugin DeACSM failed with traceback:
Traceback (most recent call last):
File "calibre/customize/ui.py", line 236, in _run_filetype_plugins
File "calibre_plugins.deacsm.__init__", line 416, in run
success, replyData = fulfill(path_to_ebook, deacsmprefs["notify_fulfillment"])
~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/dave/.var/app/com.calibre_ebook.calibre/config/calibre/plugins/DeACSM.zip/libadobeFulfill.py", line 425, in fulfill
ret = operatorAuth(fulfillURL)
File "/home/dave/.var/app/com.calibre_ebook.calibre/config/calibre/plugins/DeACSM.zip/libadobeFulfill.py", line 273, in operatorAuth
ret = doOperatorAuth(operatorURL)
File "/home/dave/.var/app/com.calibre_ebook.calibre/config/calibre/plugins/DeACSM.zip/libadobeFulfill.py", line 244, in doOperatorAuth
resp = sendRequestDocu(init_license_service_request, activationURL + "/InitLicenseService").decode("utf-8")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'decode'
DeACSM v0.0.16: Trying to parse file URLLink.acsm
DeACSM v0.0.16: Try to fulfill ...
Post request failed with URLError
Added URLLink to db in: 0.1
Added 1 books in 135.9 seconds
[178.21] Shutdown starting...
[178.23] Shutdown message shown...
[178.23] Grid view shutdown
[178.23] Bookshelf view shutdown
[178.23] Actions shutdown
[178.43] Various services shutdown
[178.43] Metadata backup shutdown
[178.43] Current database closed
[178.43] Windows hidden
[178.44] Waiting for overseers, mdns, and live to shutdown
[178.44] Waiting for device manager to shutdown
[178.44] Shutdown complete in 0.23, quitting...
[178.44] Application event loop quit
And, for posterity, to get the logs, right-click the Preferences button in Calibre and Restart in Debug Mode. Calibre will tell you what to do.
EDIT FINAL: Aaaaaand, now it works. Maybe Adobe had server issues.