We recommend EPUB files since they provide a better overall reading experience. With EPUB files, text will re-flow and can be resized on different devices.
NetGalley accepts EPUB2 and EPUB3 files. Please see our file optimization suggestions here, especially if you are delivering PDF files instead of EPUB. There are important file size limitations for PDF files.
For Kindle, files must be below 24MB to be delivered. If the file is over 24MB, you will see an error message on the title record after upload.
For fixed layout books, PDF will work best. Fixed layout EPUB3 files will only work with the NetGalley Shelf app. They are not compatible with our other download options. If you are delivering a fixed layout EPUB3 file, please be sure to update your Reading Options to ensure the appropriate settings are in place. If you are unsure, please reach out to us!
For audiobooks, your file must be a zip file with a collection of mp3 files inside. The listening order should be noted (example - 001_Introduction.mp3). The maximum file size for audiobooks is 1 GB. Please see the full file requirements for audiobooks here.