Converting a VBK file to PDF is not a one-step process, but it is entirely achievable with the right methodology. You must first extract the individual document files from the Veeam backup container using specialized software (Veeam itself, DiskInternals, or UFS Explorer). Only then can you perform a standard document-to-PDF conversion.
. Because these files are designed to stay within the VitalSource ecosystem, there is no direct "Save As" button.
This is the safest method as it uses the official application, though it is time-consuming due to printing restrictions.