{"id":11554,"date":"2026-03-24T09:04:43","date_gmt":"2026-03-24T09:04:43","guid":{"rendered":"https:\/\/www.vappingo.com\/word-blog\/?p=11554"},"modified":"2026-04-06T15:29:23","modified_gmt":"2026-04-06T15:29:23","slug":"how-to-upload-manuscript-to-kdp","status":"publish","type":"post","link":"https:\/\/www.vappingo.com\/word-blog\/how-to-upload-manuscript-to-kdp\/","title":{"rendered":"How to Upload Your Manuscript to KDP"},"content":{"rendered":"<article class=\"vap-art\">\n<div style=\"background: #0c0c0f; border-radius: 16px; padding: 52px; margin-bottom: 48px; position: relative; overflow: hidden;\">\n<div style=\"margin-bottom: 24px;\"><span style=\"display: inline-flex; align-items: center; padding: 5px 14px; background: rgba(50,186,211,.12); border: 1px solid rgba(50,186,211,.35); border-radius: 20px; font-size: 10px; font-family: 'DM Mono','Courier New',monospace; letter-spacing: 2px; color: #32bad3; font-weight: 500; text-transform: uppercase; margin-right: 8px;\">KDP Fundamentals \u00b7 Vappingo<\/span><br \/>\n<span style=\"display: inline-flex; align-items: center; padding: 5px 14px; background: rgba(255,255,255,.04); border: 1px solid rgba(50,186,211,.2); border-radius: 20px; font-size: 10px; font-family: 'DM Mono','Courier New',monospace; letter-spacing: 1.5px; color: #32bad3; text-transform: uppercase;\">C1 \u00b7 Article 1.13<\/span><\/div>\n<div style=\"font-size: clamp(24px,3.8vw,40px); font-weight: 800; letter-spacing: -1px; line-height: 1.1; color: #f2f0f5; margin: 0 0 18px; font-family: 'DM Sans',sans-serif;\">How to Upload Your <em style=\"font-style: normal; color: #32bad3;\">Manuscript to KDP<\/em><\/div>\n<p style=\"font-size: 16px; color: #c8c4d8; line-height: 1.8; max-width: 560px; margin: 0 0 28px; padding: 0;\">A step-by-step guide to the manuscript upload process \u2014 accepted formats, what KDP does with your file, how to use the previewer, and what to do if your file is rejected.<\/p>\n<div style=\"border-top: 1px solid #32323f; padding-top: 20px;\">\n<table style=\"border-collapse: collapse; width: auto; background: transparent;\">\n<tbody>\n<tr>\n<td style=\"padding: 0 28px 0 0; white-space: nowrap; vertical-align: middle; border: none; background: transparent;\"><span style=\"font-family: 'DM Mono','Courier New',monospace; font-size: 11px; color: #9490a8; letter-spacing: .5px; vertical-align: middle;\">10-minute read<\/span><\/td>\n<td style=\"padding: 0 28px 0 0; white-space: nowrap; vertical-align: middle; border: none; background: transparent;\"><span style=\"font-family: 'DM Mono','Courier New',monospace; font-size: 11px; color: #9490a8; letter-spacing: .5px; vertical-align: middle;\">Beginner<\/span><\/td>\n<td style=\"padding: 0; white-space: nowrap; vertical-align: middle; border: none; background: transparent;\"><span style=\"font-family: 'DM Mono','Courier New',monospace; font-size: 11px; color: #9490a8; letter-spacing: .5px; vertical-align: middle;\">Updated 2025<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<nav class=\"vap-toc\" aria-label=\"Article contents\">\n<div class=\"vap-toc-label\">In this article<\/div>\n<ol>\n<li><a href=\"#upload-formats\">Accepted file formats<\/a><\/li>\n<li><a href=\"#upload-ebook\">Uploading an eBook manuscript<\/a><\/li>\n<li><a href=\"#upload-print\">Uploading a print manuscript<\/a><\/li>\n<li><a href=\"#upload-previewer\">Using the KDP previewer<\/a><\/li>\n<li><a href=\"#upload-rejection\">What causes file rejection<\/a><\/li>\n<li><a href=\"#upload-tips\">Tips for a clean first upload<\/a><\/li>\n<\/ol>\n<\/nav>\n<p>Uploading your manuscript to KDP is straightforward once you know what the system expects. The process differs slightly between eBook and print formats, and the previewer stage deserves more attention than most first-time authors give it. This guide covers every step. For the full publishing overview, see our <a href=\"https:\/\/www.vappingo.com\/word-blog\/self-publishing-amazon-kdp-beginners-guide\/\">complete beginner&#8217;s guide to self-publishing on Amazon KDP<\/a>.<\/p>\n<h2 id=\"upload-formats\">Accepted File Formats<\/h2>\n<p><strong>For Kindle eBooks<\/strong>, KDP accepts the following file types:<\/p>\n<ul>\n<li><strong>.docx<\/strong> (Microsoft Word) \u2014 the most common choice for most authors. KDP&#8217;s converter handles the transformation to Kindle format automatically.<\/li>\n<li><strong>.epub<\/strong> \u2014 the industry standard eBook format. If you use a dedicated formatting tool like <a href=\"https:\/\/www.atticus.io\" target=\"_blank\" rel=\"noopener\">Atticus<\/a> or <a href=\"https:\/\/vellum.pub\" target=\"_blank\" rel=\"noopener\">Vellum<\/a>, it will export an .epub directly.<\/li>\n<li><strong>.pdf<\/strong> \u2014 accepted but not recommended for eBooks. PDFs produce fixed-layout output that does not reflow on different screen sizes, creating a poor reading experience on small devices.<\/li>\n<li><strong>.html, .txt, .rtf, .mobi<\/strong> \u2014 also accepted. .mobi is the legacy Kindle format; if you have an old .mobi file from a previous publication, KDP still accepts it.<\/li>\n<\/ul>\n<p><strong>For paperback and hardcover<\/strong>, KDP accepts <strong>PDF only<\/strong>. Your interior file must be a print-ready PDF created to KDP&#8217;s exact specifications for your chosen trim size \u2014 correct margins, correct image resolution, correct bleed settings. Word documents are not accepted for print. For the full print specification requirements, see our guide to <a href=\"https:\/\/www.vappingo.com\/word-blog\/kdp-manuscript-formatting-requirements\/\">KDP manuscript formatting requirements<\/a>.<\/p>\n<h2 id=\"upload-ebook\">Uploading an eBook Manuscript: Step by Step<\/h2>\n<ol>\n<li>In your KDP Bookshelf, open your eBook title entry and navigate to the <strong>Kindle eBook Content<\/strong> tab.<\/li>\n<li>Under &#8220;Kindle eBook Manuscript,&#8221; click <strong>Upload eBook Manuscript<\/strong> and select your file.<\/li>\n<li>KDP processes your file \u2014 this typically takes one to three minutes depending on file size. During processing, a progress indicator is shown.<\/li>\n<li>Once processing is complete, you are prompted to launch the previewer. Do not skip this step.<\/li>\n<\/ol>\n<p>KDP&#8217;s conversion engine is generally reliable for well-structured Word documents. Common conversion issues include: inconsistent heading styles producing a broken table of contents; manually applied bold or italic formatting not carrying through correctly; and images embedded at insufficient resolution appearing blurry in the preview.<\/p>\n<h2 id=\"upload-print\">Uploading a Print Manuscript: Step by Step<\/h2>\n<ol>\n<li>In your KDP Bookshelf, open your paperback or hardcover title entry and navigate to the <strong>Paperback Content<\/strong> tab.<\/li>\n<li>Select your trim size, interior type (black-and-white or colour), paper colour (white or cream), and bleed setting before uploading. These settings affect how KDP validates your PDF, so get them right before you upload.<\/li>\n<li>Under &#8220;Book Cover,&#8221; upload your cover PDF. KDP provides a Cover Calculator tool that generates the exact cover template dimensions based on your page count and trim size \u2014 use it.<\/li>\n<li>Upload your interior PDF. KDP runs an automated check against your specified settings and flags any errors in a detailed report.<\/li>\n<li>Launch the print previewer to review the output.<\/li>\n<\/ol>\n<h2 id=\"upload-previewer\">Using the KDP Previewer Properly<\/h2>\n<p>The previewer is the most underused part of the upload process and the one that prevents the most post-publication problems. Use it properly:<\/p>\n<ul>\n<li><strong>For eBooks:<\/strong> check every chapter opening, all images, your table of contents links, and your front and back matter. Switch between device views \u2014 Kindle Paperwhite, tablet, and phone \u2014 to see how your formatting behaves at different screen sizes and font settings.<\/li>\n<li><strong>For print:<\/strong> check every page. Look specifically at your margins (nothing should be too close to the trim edge), your chapter headings, your page numbers, and any images or tables. Zoom in on any pages with complex layouts.<\/li>\n<li><strong>Check your cover too:<\/strong> verify the spine text is centred correctly and that nothing important is within the bleed zone.<\/li>\n<\/ul>\n<p>Problems caught in the previewer cost you nothing. Problems caught by readers after publication cost you reviews, rankings, and credibility. For a full checklist of what to look for, see our article on <a href=\"https:\/\/www.vappingo.com\/word-blog\/how-to-preview-book-kdp\/\">how to preview your book before publishing on KDP<\/a>.<\/p>\n<h2 id=\"upload-rejection\">What Causes File Rejection<\/h2>\n<p>KDP rejects manuscript files that fail its automated validation checks. The most common causes:<\/p>\n<ul>\n<li><strong>Print PDF dimensions don&#8217;t match selected trim size<\/strong> \u2014 your PDF was created at a different size than the trim you selected in KDP<\/li>\n<li><strong>Insufficient margins<\/strong> \u2014 content too close to the page edge or gutter<\/li>\n<li><strong>Images below 300 DPI<\/strong> \u2014 low-resolution images in a print file trigger a quality warning that prevents publication<\/li>\n<li><strong>Missing fonts or font embedding errors<\/strong> \u2014 fonts used in your PDF must be embedded; fonts that are not licensed for embedding cause rejection<\/li>\n<li><strong>PDF version incompatibility<\/strong> \u2014 KDP prefers PDF\/X-1a or PDF\/X-3; some PDF versions produced by certain software are not fully supported<\/li>\n<\/ul>\n<p>For the complete list of rejection reasons and how to fix each one, see our dedicated article on <a href=\"https:\/\/www.vappingo.com\/word-blog\/kdp-file-rejection-reasons\/\">common KDP file rejection reasons<\/a>.<\/p>\n<h2 id=\"upload-tips\">Tips for a Clean First Upload<\/h2>\n<ul>\n<li>For eBooks, use styles throughout your Word document rather than manual formatting. Consistent heading styles produce a clean, navigable table of contents automatically.<\/li>\n<li>For print, download KDP&#8217;s trim-size-specific template before you format your manuscript, not after. Building into the correct template from the start is far less work than reformatting a finished manuscript.<\/li>\n<li>Run your manuscript through <a href=\"https:\/\/www.amazon.com\/Kindle-Create\/b?ie=UTF8&amp;node=18292298011\" target=\"_blank\" rel=\"noopener\">Kindle Create<\/a> before uploading if you are using a Word document. It identifies and often corrects common formatting issues before they reach KDP&#8217;s system.<\/li>\n<li>Check your file size before uploading. Very large files (over 50 MB for eBooks, over 400 MB for print) may cause upload timeouts. Compress images appropriately.<\/li>\n<\/ul>\n<p>While your files are being prepared, get your metadata ready with a dedicated <a href=\"https:\/\/app.vappingo.com\" target=\"_blank\" rel=\"noopener\">KDP metadata tool<\/a>. KDP Rank Fuel by Vappingo generates your keywords, optimised book description, and category recommendations in advance, so you are not writing them under pressure in the KDP interface at the point of upload.<\/p>\n<p>And before your file is ready to upload, it needs to be clean. <a href=\"https:\/\/www.vappingo.com\/Proofreading-Services\/Manuscript-Proofreading-Services\">Manuscript proofreading for self-published authors<\/a> from Vappingo catches the errors that survive self-editing \u2014 the ones your readers will find if you don&#8217;t.<\/p>\n<div style=\"background: #1c1c22; border-radius: 12px; padding: 32px; margin-top: 52px;\">\n<p style=\"font-family: 'DM Mono','Courier New',monospace; font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: #32bad3; margin: 0 0 20px 0; padding: 0;\">Continue Reading \u00b7 KDP Fundamentals<\/p>\n<table style=\"width: 100%; border-collapse: collapse; table-layout: fixed;\">\n<tbody>\n<tr>\n<td style=\"width: 50%; padding: 0 5px 10px 0; vertical-align: top; height: 1px;\"><a style=\"display: block; background: #252530; border: 1px solid #32323f; border-radius: 8px; padding: 15px 17px; text-decoration: none; height: 100%; box-sizing: border-box;\" href=\"https:\/\/www.vappingo.com\/word-blog\/self-publishing-amazon-kdp-beginners-guide\/\"><br \/>\n<span style=\"display: block; font-family: 'DM Mono','Courier New',monospace; font-size: 9px; letter-spacing: 1.5px; text-transform: uppercase; color: #32bad3; margin-bottom: 7px;\">Cornerstone<\/span><br \/>\n<span style=\"display: block; font-size: 13.5px; font-weight: 600; color: #c8c4d8; line-height: 1.4; font-family: 'DM Sans',sans-serif;\">The Complete Beginner&#8217;s Guide to Self-Publishing on Amazon KDP<\/span><br \/>\n<\/a><\/td>\n<td style=\"width: 50%; padding: 0 0 10px 5px; vertical-align: top; height: 1px;\"><a style=\"display: block; background: #252530; border: 1px solid #32323f; border-radius: 8px; padding: 15px 17px; text-decoration: none; height: 100%; box-sizing: border-box;\" href=\"https:\/\/www.vappingo.com\/word-blog\/kdp-manuscript-formatting-requirements\/\"><br \/>\n<span style=\"display: block; font-family: 'DM Mono','Courier New',monospace; font-size: 9px; letter-spacing: 1.5px; text-transform: uppercase; color: #32bad3; margin-bottom: 7px;\">Formatting<\/span><br \/>\n<span style=\"display: block; font-size: 13.5px; font-weight: 600; color: #c8c4d8; line-height: 1.4; font-family: 'DM Sans',sans-serif;\">KDP Manuscript Formatting Requirements (The Full Checklist)<\/span><br \/>\n<\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%; padding: 0 5px 0 0; vertical-align: top; height: 1px;\"><a style=\"display: block; background: #252530; border: 1px solid #32323f; border-radius: 8px; padding: 15px 17px; text-decoration: none; height: 100%; box-sizing: border-box;\" href=\"https:\/\/www.vappingo.com\/word-blog\/kdp-file-rejection-reasons\/\"><br \/>\n<span style=\"display: block; font-family: 'DM Mono','Courier New',monospace; font-size: 9px; letter-spacing: 1.5px; text-transform: uppercase; color: #32bad3; margin-bottom: 7px;\">Troubleshooting<\/span><br \/>\n<span style=\"display: block; font-size: 13.5px; font-weight: 600; color: #c8c4d8; line-height: 1.4; font-family: 'DM Sans',sans-serif;\">Common KDP File Rejection Reasons and How to Fix Them<\/span><br \/>\n<\/a><\/td>\n<td style=\"width: 50%; padding: 0 0 0 5px; vertical-align: top; height: 1px;\"><a style=\"display: block; background: #252530; border: 1px solid #32323f; border-radius: 8px; padding: 15px 17px; text-decoration: none; height: 100%; box-sizing: border-box;\" href=\"https:\/\/www.vappingo.com\/word-blog\/how-to-preview-book-kdp\/\"><br \/>\n<span style=\"display: block; font-family: 'DM Mono','Courier New',monospace; font-size: 9px; letter-spacing: 1.5px; text-transform: uppercase; color: #32bad3; margin-bottom: 7px;\">Quality Check<\/span><br \/>\n<span style=\"display: block; font-size: 13.5px; font-weight: 600; color: #c8c4d8; line-height: 1.4; font-family: 'DM Sans',sans-serif;\">How to Preview Your Book Before Publishing on KDP<\/span><br \/>\n<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/article>\n<p><!-- ============================================================ ARTICLE 1.14 URL: https:\/\/www.vappingo.com\/word-blog\/kdp-manuscript-formatting-requirements\/ KDP Rank Fuel anchor: best KDP tools Proofreading anchor: book manuscript proofreading service ============================================================ --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>KDP Fundamentals \u00b7 Vappingo C1 \u00b7 Article 1.13 How to Upload Your Manuscript to KDP A step-by-step guide to the manuscript upload process \u2014 accepted formats, what KDP does with your file, how to use the previewer, and what to do if your file is rejected. 10-minute read Beginner Updated 2025 In this article Accepted &#8230; <a title=\"How to Upload Your Manuscript to KDP\" class=\"read-more\" href=\"https:\/\/www.vappingo.com\/word-blog\/how-to-upload-manuscript-to-kdp\/\" aria-label=\"More on How to Upload Your Manuscript to KDP\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-11554","post","type-post","status-publish","format-standard","hentry","category-kdp-publishing"],"_links":{"self":[{"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/posts\/11554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/comments?post=11554"}],"version-history":[{"count":2,"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/posts\/11554\/revisions"}],"predecessor-version":[{"id":11556,"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/posts\/11554\/revisions\/11556"}],"wp:attachment":[{"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/media?parent=11554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/categories?post=11554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vappingo.com\/word-blog\/wp-json\/wp\/v2\/tags?post=11554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}