They're clickable on an iPad using Apple's iBooks applicaiton. I don't know the Kindle format well enough to know if that's a supported feature in mobi.
Your title says footnotes but your body text talks about endnotes.
If it is Footnotes: what Steve says (I can back him up on that, although of course "foot"notes will appear as *end*notes in an ePub).
If it is Endnotes: InDesign (1.0, 1.5, 2.0, CS, CS2, CS3, CS4, CS5, Cs5.5, and now CS6...) does not Do endnotes natively, so if you somehow created these it depends on how you did that.
Hello Steve and Jongware;
Thanks for the feedback. Some clarification on my part:
I wrote this book in MS Word with footnotes that I switched to Endnotes in the last phase before importing the file into InDesign to do the final layout of a print version of the book. Both Footnotes and Endnotes in Word act the same way, i.e. you can click the note number to go to the Note and then click the number again to go back to the text.
Does this function not transfer to InDesign when importing?
of course, now that I think about it, the clickable MSWord endnotes are NOT clickable once imported into InDesign. So perhaps those links are eliminated in the import process.
(2nd time) InDesign does not Do endnotes. They were translated to plain text the very moment you placed your Word document in InDesign.
Only way to get plain text to be hyperlinked is to add the links by yourself.
Thank you Jongware.
So if I go through the InDesign file manually and hyperlink all the existing endnote numbers in the text with the associated numbers in the notes, and re-export, I should get an eBook with clickable notes?
Great, I'll study up a bit on doing hyperlinks in ID.
I followed the instructions at the following link and was able to cross-reference all endnote numbers in my text with the endnotes themselves so that when I exported to Kindle (.mobi) I got clickable links. Only problem is, I can click from the text to the endnotes but cannot click back from the endnotes to the source text. This doesn't work in InDesign or in the Kindle file. Isn't a cross reference supposed to work in both directions?
Endnotes in InDesign CS4/CS5
In CS5.5 (not CS5), if you use footnotes in InDesign and create an ePub, those notes are exported to endnotes with two-way links. CS6 adds the option where to place the notes: at the end of the document (proper endnotes) or after the paragraph in which they're cued.