Observed arrival · 2026-09-03
PDFDocPreflight: A Preflight Check Before the Upload
A browser-based checker that tests PDFs against publishing requirements for Amazon KDP, Lulu, and IngramSpark.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The workflow separates general PDF health checks from rule profiles for KDP, Lulu, and IngramSpark, then presents warnings and failures for another pass. Its sample childrens-book.pdf report scores 82/100 across a 6×9-inch, 214-page document, with bleed marked WARN and image resolution marked FAIL. The page also lists checks for embedded fonts, color, transparency, metadata, file integrity, and file size. Processing is described as browser-local through pdf.js and pdf-lib.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue