Third-Party EPUB Provider

We highly encourage you to verify that the files created by a third-party will be suitable for a production or manufacturing environment and not for personal use only.

One way to tell if your file is valid before uploading to IngramSpark is by running your file through IDPF’s free ePub Validator (http://validator.idpf.org/). Be aware, this tool only accepts files up to 10 MB. If you have any problems using the epub validator tool you can also try this one: https://www.pagina.gmbh/produkte/epub-checker/

 

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