本帖最后由 hyqq2015 于 2018-11-16 20:55 编辑
这篇文章也比较详细:
http://www.staycu.com/archives/259
epub估计应该选择Adobe Digital Editions
还可以参照这篇文章描述的第二步(但其软件是收费的),估计这个步骤不能少:
https://www.epubor.com/remove-drm-from-adobe.html
1. Download & Install Adobe Digital Editions and authorize your Adobe Digital Editions with your Adobe ID. If you don't have an Adobe ID, you can apply a new one. 2. Make sure the ePub & PDF files can be read on ADE! For EPUB & PDF books from Sony/Kobo/ other stores, refer to how to read eBooks on ADE. For .ACSM files, refer tohow to convert .ACSM to EPUB to read on ADE. Note: The decryption key will be generated during the reading process. If you fail to read eBooks on ADE, you will be likely to fail to remove DRM as well. To solve this problem, you have to delete all your books under ADE folder and redownload them under the newly authorized ADE.
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