This is caused by a bug in the Amazon software. The covers for my MOBI files have stopped showing up in Kindle for PC/Kindle for Android/iPad etc. Metadata ToCs will give the people reading your e-books a much superior navigation experience (except on the Kindle, where they are essentially the same as a content ToC).
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See the conversion section of the User Manual for more details on how to use these options.įinally, I encourage you to ditch the content ToC and only have a metadata ToC in your e-books. If you have a hand edited ToC in the input document, you can use the ToC detection options in calibre to automatically generate the metadata ToC from it. Also note that if you disable the generation of the end-of-file ToC the resulting MOBI file may not function correctly on a Kindle, since the Kindle’s use the metadata ToC for many things, including the Page Flip feature. with the metadata ToC at the end of the book. So we strongly recommend that you leave the default as it is, i.e. If you want a ToC at a particular location in your document text, create one by hand. The fact that it is part of the text in MOBI is an accident caused by the limitations of MOBI. Remember this ToC is semantically a metadata ToC, in any format other than MOBI it cannot not be part of the text. You can also tell calibre whether to put it at the start or the end of the book via an option in the MOBI Output settings. You can turn this off by an option in the MOBI Output settings. When converting to MOBI, calibre detects the metadata ToC in the input document and generates an end-of-file ToC in the output MOBI file. One can be accessed directly from the Kindle’s menus, the other cannot. Remember that one is semantically a content ToC and the other is a metadata ToC, even though both might have exactly the same entries and look the same.
Now it might well seem to you that the MOBI book has two identical ToCs. When you click Goto Table of Contents on your Kindle, it is to this extra content ToC that the Kindle takes you. A MOBI book simulates the presence of a metadata ToC by putting an extra content ToC at the end of the book. This is because the MOBI format, alone amongst mainstream e-book formats, does not have decent support for a metadata ToC. In the MOBI format, the situation is a little confused.
How it is represented is up to the viewer program. This ToC cannot be styled by the book creator. For example, in the calibre E-book viewer, you use the Show Table of Contents button to see this ToC. A metadata ToC is a ToC that is not part of the book text and is typically accessed by some special button on a reader. This Table of Contents is part of the main document flow and can be styled however you like. One is the traditional Table of Contents, like the ToC you find in paper books. The first thing to realize is that most e-books have two tables of contents. What’s the deal with Table of Contents in MOBI files? ¶
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This is because the HTML to ZIP plugin automatically converts the HTML files to a standard encoding (UTF-8). Note that when converting HTML files, leave the input encoding setting mentioned above blank. A common encoding for many files from the web is cp1252 and I would suggest you try that first. HTML files from different sources often have different encodings, so you may have to change this setting repeatedly. Now when you add HTML files to calibre they will be correctly processed. To do this go to Preferences → Advanced → Plugins → File type and customize the HTML to ZIP plugin, telling it what encoding your HTML files are in. When adding HTML files to calibre, you may need to tell calibre what encoding the files are in. The command-line tools have an ebook-convert-txt-input -input-encoding option. This can be done in the GUI via the Input character encoding field in the Look & feel → Text section of the conversion dialog. Knowing the encoding of the source file: calibre tries to guess what character encoding your source files use, but often, this is impossible, so you need to tell it what encoding to use. How do I convert my file containing non-English characters, or smart quotes? ¶ There are two aspects to this problem:
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