BookPreflight resources
KDP PDF error and export guides
Use real PDF measurements, affected pages and a safe next step instead of generic advice.
Check my PDF freePDF checking workflows
Check your KDP PDF before uploadingInspect an interior or full-wrap cover PDF before another KDP upload.Fix the KDP error you actually receivedPaste the exact warning you received and verify it against the PDF itself.Check your full-wrap KDP coverMeasure the complete back-spine-front cover as one PDF page.Check every interior pageMeasure every interior page instead of checking only the document preset.
KDP error guides
Why KDP says your gutter is insufficientFind pages whose inside margin is too small for the selected binding and page count.Find text outside KDP safe marginsLocate text frames, folios or running heads that cross a safe margin.Is the image bleed or a margin error?Separate intentional full bleed from an image that accidentally enters a protected margin.Locate the exact object KDP may rejectIdentify the vector, line, decoration or hidden object that crosses a protected edge.Compare your cover's actual and expected sizeCompare the submitted cover page with the expected size derived from the book specification.Check the true page size of your PDFRead the PDF's real page boxes and compare them with the trim selected for the book.Check where bleed is missingFind edges where artwork does not extend far enough for the selected bleed mode.See which fonts are not embeddedInventory fonts in the PDF and identify resources that are not embedded.Check effective image DPI page by pageCalculate effective image resolution at the size actually placed on each page.Check spine text clearanceMeasure spine text against the calculated spine edges and clearance zones.Keep important content out of the barcode zoneKeep essential back-cover content outside the barcode placement region.Check transparency before printIdentify transparency and optional-content structures that may need source-level review.Check odd, even, Roman and Arabic page numbersReview odd/even placement and visible numbering without treating every intentional omission as an error.Find blank-page runs before uploadFind long blank-page runs near the beginning, end and within the interior.Find print marks that should not be submittedDetect crop, registration and other printer marks that should not be part of the submitted book PDF.Export an unlocked PDF for KDP reviewConfirm whether encryption or permission restrictions prevent reliable inspection.Prepare one continuous full-wrap cover pageVerify that the cover PDF contains one continuous full-wrap page.
Export guides
Export a print-ready KDP PDF from WordPrepare page size, mirrored margins, section breaks and PDF export settings in Microsoft Word.Prepare KDP dimensions and bleed in CanvaSet exact custom dimensions, bleed artwork and export choices for a Canva book file.Export a compliant print PDF from InDesignConfigure document intent, facing pages, bleed and a controlled PDF export preset in Adobe InDesign.Prepare a KDP PDF in Affinity PublisherPrepare print dimensions, facing pages, bleed and PDF output in Affinity Publisher.Export a PDF with correct size, fonts and imagesUse a repeatable final-export checklist for size, bleed, fonts, images and restrictions.Choose the right interior page dimensionsDecide whether the interior needs bleed before choosing page dimensions and export settings.