
: Re: How to create clickable table of contents in a PDF? I have many technical PDF ebooks where there are no chapters (no clickable table of contents or other means for quick navigation through
Well, you could always buy a copy of Adobe Acrobat, which is actually designed solely for the purpose of creating and editing PDF files.
Or you could import the file into Calibre, convert it to ePub format, edit the ePub to add the table of contents, then convert it back to PDF.
There are other free tools for working with PDF directly. If you do a Google search, you would find this page which lists several free tools for editing or modifying PDF in various ways.
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: According to the Calibre supported formats list, .docx is one of the supported input types. For the Kindle, you probably want to use AZW as the output. So you should go to the Calibre website,