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You should select the zip file that is in the “DeDRM_calibre_plugin” folder, not any files inside the plugin’s zip archive. I’ve fully unzipped the tools archive, but I can’t find the calibre plugin when I try to add them to calibre. You must unzip the archive, and install the calibre plugin from a folder called “DeDRM_calibre_plugin” in the unzipped archive. It is a collection of various DRM removal tools which includes calibre plugin. The tools archive is not a calibre plugin. You might be trying to add the tools archive. I am trying to install the calibre plugin, but calibre keeps on saying that the plugin is invalid. Support for removing DRM from rented or library ebooks is not provided.
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Getting and Using the Tools I can’t get the tools to work on my rented or library ebooks.
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