If you do this often, look for self-hosted, open-source VBK parsers. Keeping the conversion local is always safer than "the cloud" when dealing with entire disk images.
If you have ever used VitalSource for textbooks, you are familiar with the VBK file format convert vbk to pdf online
There are several online tools available for converting VBK to PDF. Here are a few options: If you do this often, look for self-hosted,
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