Free PDF preflight tools for Amazon KDP, Lulu, and IngramSpark. Check page size, bleed, fonts, and image resolution online before you upload.
Check your eBook PDF for KDP, Lulu & IngramSpark platforms.
Preflight is the practice of checking a file for technical problems (pdf /ebook page size, bleed, image resolution, embedded fonts, and structural issues) before it goes to a printer or a platform like KDP, Lulu, or IngramSpark. Catching issues before upload saves a rejected file or a bad reprint.
