When publishing as an indie author, you quickly notice platforms like Google Play Books and Lulu Books want your manuscript and/or cover images in specific digital formats—most commonly PDF or EPUB. Understanding these file types and how to create them is essential for a smooth publishing experience. This guide explains what PDF and EPUB files are, how they work, and how you can create them easily using free tools like Google Docs. Connect with me on Bluesky Sylvia Kay Rose