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Old 02-28-2025, 12:17 PM   #1
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Removing DRM from Kobo book

Help...

I have a Libra Colour, and Calibre and various plugins that I have installed that were used to remove DRM from my Kindle books (via D&T method)

I have been removing DRM from my kindle books for years (D&T method).

I bought a book on my kobo device. How do I get that into my Calibre without DRM?

Is there one way, or if there are many ways what is the preferred way?
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Old 02-28-2025, 12:23 PM   #2
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Then get the DeASCM (ASCM Input) plugin and DeDRM plugin and load the file in Calibre.

There is also a way to do it with the Kobo desktop app, I am not familar.

Last edited by ownedbycats; 02-28-2025 at 12:27 PM.
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Old 02-28-2025, 12:28 PM   #3
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There are several ways.

One is to download the book from the Kobo website (My Account -> My Books). If it has no DRM, you'll get an epub file and there's no need to remove anything. If it has DRM, you'll get a file with the extension .acsm; this must either be opened in Adobe Digital Editions, which will download the actual epub (and you can then get that epub from My Digital Editions folder in Documents), or you can install the deACSM plugin and register it with your Adobe account, then you can add the .acsm file directly to Calibre and the plugin will fetch it as epub.

Other ways are copying the books from your Kobo device or from the Kobo Desktop app. For this you need the obok plugin from the deDRM folder. As I've never used those methods, I'm not really sure how they work.

Last edited by Sirtel; 02-28-2025 at 12:31 PM.
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Old 02-28-2025, 12:39 PM   #4
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Quote:
Originally Posted by Sirtel View Post
Other ways are copying the books from your Kobo device or from the Kobo Desktop app. For this you need the obok plugin from the deDRM folder. As I've never used those methods, I'm not really sure how they work.
Obok way is pretty easy:

If you use Kobo Desktop App:
- open the app and download the book(s)
- close the app
- go to calibre and click on Obok plugin icon
- select the book(s) you want to import, and import them

If you use Kobo ereader:
- make sure you have downloaded on the device the book(s) you want to import
- connect the ereader to calibre
- click on Obok plugin icon
- select the book(s) you want to import, and import them


The only issue with Obok plugin is that it doesn't give you any info about the list of books it finds on the App or on the ereader aside of title + authors. You don't have any date nor any way to easily check if you have already imported that book or not. Obok plugin always gives you the full list of downloaded books on the device/app.
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Old 02-28-2025, 01:14 PM   #5
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Thanks, everyone. You are all very helpful. Knowing how to do this was the one step I missed in my doom-prepping for the Amazon ordeal. I knew it was possible based upon all I read on the forums here but never really tried to do it.
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Old 02-28-2025, 02:19 PM   #6
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OK, I have obok and it works well enough. One thing I noticed right away is that once I got the book off of my Kobo and into my Calibre library it does not have the checkmark indicating it is 'On Device' even though that is where it came from.
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Old 02-28-2025, 03:23 PM   #7
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Quote:
Originally Posted by TheSmitty View Post
OK, I have obok and it works well enough. One thing I noticed right away is that once I got the book off of my Kobo and into my Calibre library it does not have the checkmark indicating it is 'On Device' even though that is where it came from.
Copy title in Calibre in Library view.
Select Device view
Match missing book to Library, but paste the Calibre title to search. Go
Now Update Metadata.
Switch back to Library view and the tick will be there.
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Old 02-28-2025, 03:35 PM   #8
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Quote:
Originally Posted by TheSmitty View Post
OK, I have obok and it works well enough. One thing I noticed right away is that once I got the book off of my Kobo and into my Calibre library it does not have the checkmark indicating it is 'On Device' even though that is where it came from.
Relevant:

Quote:
Originally Posted by ownedbycats View Post
There's two main reasons I've seen for this happening:

Automatch failures. This is very common if the book has multiple authors. It also happens when there's extra fluff in the title. Do what Sirtel mentions and use Match Book to Library.

Less common: the book isn't on the Kobo yet. Either it didn't get a chance to sync, or very rarely I've had the auto-download fail and require to press the 'download' button.

SmartEject can check for unmatched books and warn when trying to eject.
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Old 03-01-2025, 12:17 AM   #9
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Quote:
Originally Posted by TheSmitty View Post
OK, I have obok and it works well enough. One thing I noticed right away is that once I got the book off of my Kobo and into my Calibre library it does not have the checkmark indicating it is 'On Device' even though that is where it came from.
If you have KoboUtilities installed, you can try it's Refresh the list of books on the device option. If that doesn't work, then show the list of books on the device and match the book manually.

At the point you are mentioning, calibre is using it's cached copy of the books on the device since that is a lot faster than re-reading the information from the file system.
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Old 07-24-2025, 05:20 AM   #10
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Obok way is pretty easy:

If you use Kobo Desktop App:
Do you know if there is a way to remove the DRM in this strange situation: the ePub is downloaded by Kobo App on Android (that save it as a hidden crypted folder).
Calibre is on the same Android device, installed with winlator, so the Obok plugin do not find the Kobo epubs, because the Kobo App folders used are different from the Otok plugin standard...).

I add that I can not install Kobo Desktop on winlator because it fails to start after the installation.
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Old 07-24-2025, 10:01 AM   #11
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Do you know if there is a way to remove the DRM in this strange situation: the ePub is downloaded by Kobo App on Android (that save it as a hidden crypted folder).
Calibre is on the same Android device, installed with winlator, so the Obok plugin do not find the Kobo epubs, because the Kobo App folders used are different from the Otok plugin standard...).

I add that I can not install Kobo Desktop on winlator because it fails to start after the installation.
The best solution to remove the DRM from Kobo eBooks i to install the DeDRM Plugin and the DeACSM plugin.

Then just download the eBooks as ePub and for eBooks with DRM, you'll get an ACSM file that you import into calibre. DeACSM will then use that to download the ePub and DeDRM will remove the DRM.

You will then have your ePub in your calibre library to then be able to read how you want.
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Old 07-24-2025, 10:20 AM   #12
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Jon. The challenge is the OP is running calibre on his android phone ...
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Old 07-24-2025, 03:09 PM   #13
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Jon. The challenge is the OP is running calibre on his android phone ...
Maybe the OP needs a cheap laptop?
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Old 07-24-2025, 05:18 PM   #14
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Maybe the OP needs a cheap laptop?
You can do much better with a cheap mini-PC. I bought one recently (because my old slow crappy desktop died) and it was not that expensive and it came with Windows 11 Pro. 32GB RAM, 1TB SSD. You would either need a monitor or connect it to your TV.

Last edited by JSWolf; 07-24-2025 at 05:21 PM.
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Old 07-24-2025, 05:20 PM   #15
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Jon. The challenge is the OP is running calibre on his android phone ...
Why would anyone want to do that? Seems a bit daft to me.
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