The Blog
Writing, publishing, and book-craft.
Why Does KDP Reject Fonts? Fix the Real Causes
Why does KDP reject fonts? Learn what its file checks find, how to fix PDF and ebook font issues, and export a submission-ready book on the first try.
Integrated Publishing Platform Guide for Authors
This integrated publishing platform guide shows authors how to write, design, format, validate, and export books without costly submission rejections at scale.
Guide to Paperback Trim Sizes for Authors
This guide to paperback trim sizes helps self-publishing authors choose a reader-friendly format, set margins correctly, and prepare print-ready files.
Fixing Metadata Mistakes Before You Upload
Fixing metadata mistakes before upload helps protect your book’s discoverability, rights, and retailer approval. Use this preflight checklist before submission.
How to Avoid Upload Revisions Before You Publish
Learn how to avoid upload revisions with a practical preflight workflow for clean interiors, covers, metadata, and files ready for submission every time.
How to Validate EPUB Files Before You Publish
Learn how to validate EPUB files, fix common errors, and run a final retailer preflight before submitting your ebook to KDP, Apple Books, or more stores.
Submission Ready Manuscript Guide for Indie Authors
Use this submission ready manuscript guide to format, validate, and submit files that meet KDP and IngramSpark requirements before release without delays.
Best Manuscript Software for Fiction Writers
Choose manuscript software for fiction that organizes your draft, creates polished files, and catches costly KDP and IngramSpark issues before you submit.
Book Production Workflow Software That Works
Book production workflow software brings writing, cover design, layout, and file validation into one process so authors can publish with fewer surprises.
What Causes File Upload Rejection in Publishing?
Learn what causes file upload rejection on KDP and IngramSpark, how to identify the real issue, and how to submit clean, print-ready files without delays.