Common EPUB upload errors and how to fix them
Most EPUB upload errors are easy fixes: invalid markup, missing navigation, bad cover references, or remote resources. Here's how to clear the common ones.
Cover upload errors: too large, wrong format, or not found
Fix the common cover errors: image too small/large, wrong format, or 'embedded cover not found'. Use JPG/PNG at 1600x2560 and let Chiify inject it.
Why won't my book or file upload?
Uploads usually fail from an unsupported format, an oversized file, a flaky connection, or placeholder text. Here's how to diagnose and fix each.
My book is stuck in review — what should I do?
Most reviews finish in 24–48 hours. If yours is longer, check for a block, confirm files are valid, and contact support. Here's the checklist.
Fixing font and non-standard font errors in your EPUB
Font errors come from non-standard or non-embedded fonts. Embed standard fonts (or rebuild from DOCX) so text displays everywhere. Here's how.
Right-to-left and reverse-binding books (Arabic, Hebrew, manga)
For Arabic, Hebrew, or manga, set the language and reading direction so pages bind and turn correctly. Here's how to handle RTL and reverse binding.