Format Ebook for IngramSpark

I am ready to upload a manuscript to IngramSpark and need a specialist who can take it from raw document to a fully-compliant, error-free ebook file. My priority is professional book formatting—I have chosen the Ebook route for now, but I also want the layout structured so that creating a 6 × 9-inch paperback later will be straightforward.

Your task
• Clean, style, and format the existing manuscript to meet every current IngramSpark EPUB requirement (fonts embedded, images optimized, table-of-contents linked, no validation errors).
• Supply the finished, validated EPUB alongside any source files you used (InDesign, Vellum, or Word with styles intact—your choice of tool, as long as it passes IngramSpark’s checks).
• Include a brief hand-off note summarising fonts, styles, and any template choices so I can replicate changes when the print edition is ready.

Acceptance criteria
– EPUB runs through IngramSpark’s preflight without warnings.
– Internal navigation, hyperlinks, and chapter breaks work on Kindle Previewer, Apple Books, and Adobe Digital Editions.
– Text and images reflow cleanly on phones, tablets, and desktop readers.

If you have recent IngramSpark titles in your portfolio, a quick look at those will help me make a fast decision.