Scrivener's compile feature allows writers to export their projects in various formats, with customizable compile formats enabling precise control over the final document layout. Users can create or duplicate compile formats, then adjust numerous settings such as section layouts, styles, separators, and file-specific options like CSS for ePubs or PDF configurations, tailoring the output to their specific needs. Testing and iterative refinement within the Compile Format editor help ensure the exported file meets the desired standards, especially useful for generating custom-designed ebooks or print-ready PDFs.
https://www.literatureandlatte.com/blog/create-custom-scrivener-compile-formats