The most obvious difference between Calibre and InDesign is the price, and Calibre certainly wins in this area. InDesign remains dominant in design, naturally, but when saving in eBook form can't convert to all formats, and has some coding quirks that can cause the outputted …
FoxitPhantom PDF is not a direct 1 for 1 comparison to Calibre, but I called it out because some of what we'd use FoxitPhanton for is supplanted by Calibre. Calibre has built in meta-data editing tools, and that applies to PDFs as well, which is a huge benefit as we don't need …
Calibre, like Acrobat, offers the user the ability to be able to view a digital ebook whether from online or off-line. But Acrobat can only open PDF files. Calibre can open & convert multiple digital file formats.
Without a doubt, we have loved this software because of how easy it is to use and how useful it has been for us. We have been able to supervise communications between employees, customers, and suppliers, monitoring that our rules and policies are met at all scales, improving performance and productivity at work.
Management of multiple formats - Calibre does an excellent job handling multiple copies of digital media in different formats, making it available to users in their choice of format.
Robust plug-in system - Calibre has a robust plugin system that support extensibility from it's wide user base. Anything from managing metadata to integration with other applications.
Built in reader - Calibre has a built in reader for digital media files, enabling users to view the content before deciding to download the content to their device.
Not only has the customer support for Calibre been great, but the community surrounding it is great too. Users are ready and willing to jump in to help you solve a particular issue you're encountering with Calibre. As a result, I've expanded what we do with Calibre quite a bit through community support of its plugin infrastructure.
Calibre, like Acrobat, offers the user the ability to be able to view a digital ebook whether from online or off-line. But Acrobat can only open PDF files. Calibre can open & convert multiple digital file formats.