EPUB file Encrypted?

Forum|Forum|8 months ago
July 17, 2025
2 replies
177 views

Hi, I received this message when uploading my reflow epub file to Draft2Digital. I don't even know why it is encrypted or how to remove it...any thoughts?

Warning - You have submitted an encrypted ePub. Encryption is not fully supported across the publishing industry and may delay or prevent publication at certain digital stores.

EPUB

L

Laura Brady

Inspiring

It's very likely related to any fonts you have embedded in the ebook. If that's the case. you can open the EPUB, delete the encryption.xml file from the META-INF folder, and then zip it back up. If you are using Sigil or other freeware to edit your ebook, you will need eCanCrusher to zip and unzip the ebook. This screenshot is from oXygen XML editor. You won't be able to see the META-INF folder in something like Sigil.