Free KDP Pre-Flight Verification · Catch Amazon KDP formatting & margin rejections before you upload · Pricing & Plans ➔
kdp press check
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Combined Book Package · sample_manuscript.pdf + sample_cover.pdf
Package Needs Adjustments Before Upload.

Your book package scored 81% ready. We detected 4 blocking discrepancy between your interior and cover files. See below for exact resizing instructions.

4 blocking 5 advisory Trim: 6.0" x 9.0" 33 Pages (white paper)
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Master KDP Package Inspection Certificate Download a certified PDF report validating that both Interior and Cover files match KDP print-on-demand specifications.
⬇ Download Package Certificate (PDF)
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1-Click PDF Auto-Fix Available INSTANT FIX
We can automatically fix common KDP rejection issues (such as odd page count padding and crop mark stripping) in 1 click!

🔗 Package Cross-Validation Checks

Verifying the physical synchronization between Interior and Cover
Expected Spine Width 0.074" 33 pages on white paper
Expected Cover Dimensions 12.324" x 9.25" Includes 0.125" bleed on all sides
Measured Cover Dimensions 12.327" x 9.25" From uploaded cover file
OK Spine Width & Page Count Match Cover dimensions (12.33 x 9.25 in) perfectly match your 33-page interior on white paper.
Interior page count (33) requires a spine width of 0.074 in. Total cover width matches expected 12.324 in (within 0.005 in tolerance).
OK Trim Height & Vertical Bleed Cover height (9.25 in) matches interior trim (9.0 in) plus 0.125 in bleed on top and bottom.
Interior trim height is 9.0 in. Cover height is 9.250 in (expected 9.250 in).
OK KDP Spine Text Policy (Under 79 Pages) Book has 33 pages (under 79 pages). Ensure your cover spine contains no title or author text.
Books under 79 pages have thin spines (0.074 in) where text cannot be reliably centered during binding.

📄 Interior Manuscript Findings (sample_manuscript.pdf)

33 pages · Trim: 6.0" x 9.0"
OK Document Type Reads like a book interior, about 147 words per page across 33 pages.
33 page(s). Classified as: book.
OK Page Count 33 pages, within Amazon KDP's standard range (24–828 pages).
Page count (33) meets KDP paperback printing criteria.
OK Trim Size Your pages are 6.00" x 9.00" (432 pt x 648 pt), matching standard KDP trim size.
Matches KDP's 6.0" x 9.0" trim size exactly (432.0 pt x 648.0 pt).
OK Page Size Consistency All 33 pages are consistently sized (6.00" x 9.00").
Every page in the document matches the same dimensions.
OK Margins All 32 pages meet KDP's minimum margins.
Inside margin minimum 0.38", outside/top/bottom minimum 0.25", every page clears both.
OK Bleed No bleed in use, page size and image placement are consistent with that.
No images extend to the page edge, and the page matches the plain trim size.
OK Blank Pages Found 1 blank page(s) (page 2), within normal formatting thresholds.
Blank pages on page 2. Maximum consecutive is 1 (KDP limit: 2).
FAIL Font Embedding 1 font(s) aren't embedded: Helvetica.
How to fix it

When exporting your PDF, turn on font embedding (in Word: File > Save As > More options > Tools > Save Options > check "Embed fonts in the file"; in InDesign or similar: enable subset/embed fonts on export). Without this, KDP's printer may substitute a different font and your layout will shift.

Fonts not embedded: Helvetica
OK Image Resolution No images in this document to check.
No raster images found in the document.
OK Color Content All 33 pages appear to be black & white, you can use B&W printing.
No color images or colored vector drawings detected on any page.
OK Orphans & Widows Paragraph flow looks good. Occasional single-line paragraphs are normal.
Detected 1 instance(s), but under the 3-page threshold for professional layouts.
FAIL TOC Accuracy TOC has 4 wrong page number(s) out of 4 entries checked.
How to fix it

Update your Table of Contents before exporting the PDF. In Word: right-click the TOC → Update Field → Update entire table. In InDesign: update the TOC style under Layout > Update Table of Contents. Wrong TOC page numbers can cause KDP to reject the file during review.

"Chapter 1: The Blueprint of a Bestseller", TOC says p.7, actually p.5
"Chapter 2: Formatting Without the Headac", TOC says p.15, actually p.5
"Chapter 3: Mastering Amazon KDP Category", TOC says p.23, actually p.5
"Chapter 4: Launch Day Momentum and Beyon", TOC says p.29, actually p.5
NOTE PDF Metadata PDF metadata is missing: Title, Author, Subject. KDP reads these for discoverability.
How to fix it

Set the document properties before exporting: in Word go to File > Info and fill in Title and Author; in InDesign use File > File Info. In your PDF export settings look for 'Document Properties' or 'Metadata'. These fields don't affect print quality but they show up in KDP's system and some retailers.

Title:   (empty)
Author:  (empty)
Subject: (empty)
OK Repeated Words No accidentally doubled words found.
Scanned for patterns like "the the", none found.
OK Spacing No stray double spaces or oversized gaps found.
Checked for repeated spaces and 3+ consecutive blank lines.
OK Quote Style Too few quotes to reliably check consistency.
Straight quotes: 0. Curly/smart quotes: 0.
OK Scene Break Style No scene-break markers (like *** or #) found to check.
Scanned for standalone lines made only of repeated symbols (*, #, ~, -, etc).
NOTE Spelling & Typos Found 3 spelling error(s) with suggested corrections.
How to fix it

Use Find & Replace to fix each suggested correction. Only showing words that recur, which are more likely to be real typos.

"indesign" → "design" (appears 27x)
"atticus" → "attics" (appears 27x)
"microsoft" → "microdot" (appears 27x)
OK Chapter Structure All 27 chapters are well-paced. No chapters over 10,000 words without breaks.
Chapters are readable length with good pacing.
NOTE Front-Matter Checklist Missing 2 front-matter item(s): Dedication, Author Bio
How to fix it

Review the missing items above. KDP doesn't require these, but professional books typically include them. Click 'Are these intentional?' below to confirm, or add them if you'd like your book to look polished.

Front-matter items present: 3/5. Missing: 2/5.
NOTE Back-Matter Checklist No back-matter items detected (all optional).
How to fix it

Back-matter is optional, but adding an author bio helps readers connect with you. Consider adding at minimum a short bio (100-150 words) about yourself.

No author bio, acknowledgments, or appendix were found.

🎨 Cover PDF Findings (sample_cover.pdf)

Wraparound dimensions, barcode area, and spine safety
OK Cover Dimensions Cover is 12.33" x 9.25" (888 pt x 666 pt), exact for a 6.0" x 9.0" book, 33 pages on white paper (spine 0.074").
Measured 12.327" x 9.250" (887.5 pt x 666.0 pt). Expected 12.324" x 9.250" (887.4 pt x 666.0 pt), spine width 0.074", bleed 0.125" on all 4 sides.
OK Spine Text Spine is 0.074" wide (too narrow for legible text), and none was placed there, fine.
Spine width 0.074". No text found in the spine x-range.
FAIL Barcode Area Text was found in the bottom-right area of the back cover where KDP places the barcode, it will be covered up.
How to fix it

Move any text out of the bottom-right 2.0" x 1.2" corner of the back cover (inset 0.25" from the trim edges). Background art can run underneath the barcode safely, only text or essential graphics there are a problem.

Barcode zone approx 2.0" x 1.2", inset 0.25" from the back cover's trim edges. Text overlap detected.
FAIL Font Embedding 1 font(s) aren't embedded: Helvetica.
How to fix it

When exporting your PDF, turn on font embedding (in Word: File > Save As > More options > Tools > Save Options > check "Embed fonts in the file"; in InDesign or similar: enable subset/embed fonts on export). Without this, KDP's printer may substitute a different font and your layout will shift.

Fonts not embedded: Helvetica
OK Image Resolution No images in this document to check.
No raster images found in the document.
NOTE PDF Metadata PDF metadata is missing: Title, Author, Subject. KDP reads these for discoverability.
How to fix it

Set the document properties before exporting: in Word go to File > Info and fill in Title and Author; in InDesign use File > File Info. In your PDF export settings look for 'Document Properties' or 'Metadata'. These fields don't affect print quality but they show up in KDP's system and some retailers.

Title:   (empty)
Author:  (empty)
Subject: (empty)
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