View Full Version : Why is my ePub encrypted (according to book proofer)?

10-30-2012, 02:48 PM
Having managed to get one ebook book accepted (ePub) and Amazon (.mobi), I thought it would be easier this time round and Ive hit a completely new problem. The export process is fine and it validates with the IDPF online checker. But then I hit a problem Book Proofer wont open the epub file to sync to iPad as it says it is encrypted.

I'm using Indesign 5.5.

Ive not knowingly done anything different this time. Ive even changed the fonts I was using to be the same as I used in the last successful one. (And I've pasted the text into a completely new indesign file).

I don't know what it is I've unwittingly done to encrypt the file. Sounds like the sort of thing Id never have found if Id been looking for it!

Can anyone advise? The simpler the better!


10-30-2012, 03:09 PM
I'm guessing InDesign is including obfuscated fonts in the ePub and Book Proofer is mistakenly considering the entire ePub as being encrypted rather than just the embedded fonts. I know next to nothing about InDesign and I've never even heard of Book Proofer, but maybe someone who has can shed some light on whether Book Proofer barfs on obfuscated fonts or not. I'm fairly certain I've heard others mention that InDesign obfuscates by default.

10-30-2012, 04:07 PM
Did you need to embed fonts for some reason? Are you using special fonts that are required for proper display of your text? I never embed fonts unless absolutely necessary (and frankly it never has been so far in my short ebook design career) but I understand that if you do, it's best to use free fonts such as Google Fonts for this purpose. If not embedding fonts is what you intended, then make sure "Include Embeddable Fonts" is unchecked in the Advanced tab of the epub export dialog box.

DiapDealer, Book Proofer is a Mac application available through iTunes Connect that allows a user to easily sync a book to their iOS device without going through iTunes for the purpose of proofing. It solves a problem with iTunes that makes it hard to sync a new version of the same book if the metadata is identical.

10-31-2012, 09:03 AM
Indesign always encrypts embedded fonts, but Adobe's font encryption is not compatible with iBooks, hence the message. More background information about this:

11-03-2012, 06:07 AM
Many thanks everyone.
When I experimented with a Export style names only I thought I was avoiding the font embedding issue. But have now discovered, as I think you are all suggesting, that I need to use the Export CSS styles option, but untick the embed fonts.
Thank you too to PageLab for the link about Adobe's incompatible font encryption.
As ever, such helpful comments on the forum.
Best wishes