What Is a Print-Ready PDF? How to Export One for KDP & IngramSpark (2026)

If you are about to upload your book to Amazon KDP or IngramSpark, both platforms will ask for a print-ready PDF — and that phrase stops a surprising number of self-publishers cold. A print-ready PDF is simply a PDF that carries everything a printing machine needs to reproduce your book exactly: embedded fonts, 300-DPI images, the correct page size including bleed, and no marks, spreads, or restrictions that could confuse an automated press. Understanding bleed is one of the core ingredients, so if that term is new, read our print bleed setup guide first — the rest of this guide will click much faster.

By the end, you will know the exact specs both platforms require in 2026, how to export from Word, Google Docs, InDesign, and Affinity Publisher, and how to preflight your file so it passes first try.

What “Print-Ready” Really Means: The Four Promises Your File Makes

Open two PDFs side by side — one print-ready, one not — and they can look identical on screen. The difference is what the file carries inside. KDP and IngramSpark run automated print-on-demand workflows with no prepress operator checking your work. Your file must make four promises and keep them all: the printer can reproduce every glyph (embedded fonts), it knows exactly how big each page is (trim size plus bleed), images are dense enough for ink on paper (300 DPI), and nothing surprises the press (no crop marks, no passwords, no spreads, no spot colors).

In offset printing, a technician caught these problems before plates were made; in print-on-demand, your file either passes automated checks or bounces — and a bounce can cost you days. A print-ready PDF is the file that sails through.

The Anatomy of a Print-Ready PDF: 5 Non-Negotiable Ingredients

1. Embedded fonts. The font data travels inside the PDF, so the printer needs nothing installed. Check in Adobe Reader (File, Properties, Fonts): every font must say “Embedded” or “Embedded Subset.” This is the most common IngramSpark rejection reason — their checklist warns that Word’s “Save As” PDFs are unsupported because fonts are typically not embedded.

2. Correct trim size plus bleed. Your PDF’s page dimensions must equal the finished book size plus bleed. Both platforms use 0.125 inches: KDP’s formula is page width = trim width + 0.125″, page height = trim height + (0.125″ x 2), so a 6 x 9 book with bleed exports at 6.125 x 9.25 inches. IngramSpark wants the same 0.125″ on top, bottom, and outside edges — never on the bind edge, where extra bleed mispositions pages. If nothing touches the page edge, export with no bleed at the exact trim size.

3. Print-appropriate image resolution. Every raster image should be 300 DPI at its final printed size; web graphics at 72 DPI and screenshots look crisp on screen and muddy in print.

4. The right color mode. Black-and-white interiors must be pure grayscale — no spot colors, no ICC profiles, no RGB leftovers. Color interiors must be CMYK, with IngramSpark requiring total ink coverage at or under 240%.

5. A clean, press-safe structure. Single pages, not spreads (IngramSpark rejects 2-up files outright). No crop, registration, or printer marks — both platforms trim automatically and stray marks can print. No password protection. For IngramSpark, the final interior page should be blank so the page count divides evenly for printing.

PDF/X Standards Explained: X-1a, X-3, and X-4

PDF/X is a family of ISO standards that nails down what is allowed inside a PDF — the X stands for “exchange.” A PDF/X file behaves the same on any print workflow supporting the standard: a contract between your file and the printer.

PDF/X-1a is the oldest and strictest common standard, and the one IngramSpark’s guidance points to most. X-1a requires CMYK or grayscale, embedded fonts, no layers, and no transparency — everything flattened and press-safe, which makes it the safest choice for automated workflows. PDF/X-3 is similar but permits RGB and ICC profiles; few self-publishing platforms ask for it. PDF/X-4 allows transparency, layers, and ICC-managed color — excellent for high-end offset with a human prepress operator, but its flexibility is a liability for automated print-on-demand. Do not export X-4 for KDP or IngramSpark.

When your export dialog offers a PDF/X preset, choose PDF/X-1a:2001 with all fonts embedded. If your tool offers none (Word and Google Docs do not), export the highest-quality PDF available and verify the five ingredients manually.

How to Export a Print-Ready PDF from Microsoft Word

Word can produce a genuinely print-ready PDF — but never through “Save As,” which IngramSpark’s checklist warns is unsupported because fonts are typically not embedded. Use the dedicated export: on Windows, File, Export, Create PDF/XPS Document (Options: “Standard (publishing online and printing)”); on Mac, File, Print, PDF button, “Save as PDF.”

Before exporting, set the exact trim size (or trim plus bleed) with mirrored margins. KDP’s gutter minimums scale with page count — 0.375″ up to 150 pages, rising to 0.875″ past 700 pages — with outside margins at least 0.25″ (0.375″ with bleed); our book margins and gutter guide covers the full table. Then fix Word’s two big gotchas: font embedding (File, Options, Save, check “Embed fonts in the file”) and image compression (Picture Format, Compress Pictures, target output “High fidelity”). Verify embedding afterward in Adobe Reader (File > Properties > Fonts). Word cannot add true bleed automatically — for full-bleed images, set the page size to trim plus 0.125″ first and extend images past the page edge.

How to Export a Print-Ready PDF from Google Docs

Google Docs is the weakest common option for print-ready PDFs: no font embedding controls, no bleed settings, no CMYK conversion, no PDF/X export. The single export path is File, Download, PDF Document.

That export works for a simple text-only book with no bleed. Set the page size to your exact trim size under File > Page setup, and note that Docs has no mirrored-margin option, so leave generous inside margins. For a plain novel interior headed to KDP — body text, chapter headings, no full-bleed images — a Docs export can pass.

The honest advice: draft in Google Docs, then move the manuscript to Word, Atticus, Vellum, InDesign, or Affinity Publisher for the final print export. Docs cannot set bleed at all, so any book with images touching the page edge needs a real layout tool.

How to Export a Print-Ready PDF from InDesign and Affinity Publisher

For the most control and the fewest rejections, do your final export in a real layout application — this is the workflow professional formatters use.

In InDesign: File, Export, Adobe PDF (Print), preset “PDF/X-1a:2001.” Under Marks and Bleeds, set 0.125″ bleed on top, bottom, and outside — 0 on the binding side, as IngramSpark requires. Under Output, set Color Conversion to “Convert to Destination (Preserve Numbers)” with a CMYK destination for color interiors; under Advanced, confirm fonts subset at 100%.

In Affinity Publisher 2: File, Export, choose PDF, and set the preset to “PDF/X-1a:2001.” Enable bleed at 0.125″ on three sides with 0 on the binding edge, confirm “Embed fonts” covers all fonts, and set color space to CMYK for color work. One caution: linked images must be present at export — use Resource Manager to confirm nothing is missing, because a missing link silently exports a low-resolution preview.

KDP’s Print-Ready PDF Requirements (2026)

KDP’s requirements are the more forgiving of the two. Upload a PDF for full control — KDP also accepts DOCX, but bleed manuscripts must be PDF. Fonts must be embedded, and 300 DPI is the safe working standard for images.

Your PDF page size must equal your trim size, or trim plus bleed: page width = trim width + 0.125″, page height = trim height + (0.125″ x 2). A 6 x 9 book with bleed is therefore 6.125 x 9.25 inches. All KDP covers require bleed; interiors can go either way. Choose your trim size before laying out a single page — our KDP trim sizes guide covers how to pick.

Margins: KDP’s gutter minimums scale with page count — 0.375″ for 24–150 pages up to 0.875″ for 701–828 pages. Outside margins must be at least 0.25″ without bleed and 0.375″ with bleed. If you use KDP’s downloadable manuscript templates, strip out every scrap of sample text before uploading — leftover template text triggers upload errors.

IngramSpark’s Print-Ready PDF Requirements (2026)

IngramSpark feeds more than 40,000 retailers and libraries, and its automated prepress is stricter than KDP’s — which is why IngramSpark files get rejected more often.

All fonts must be embedded in every PDF, no exceptions — IngramSpark states this twice in its file creation guide. Word’s “Save As PDF” is explicitly unsupported; verify embedding in Adobe Reader before every upload.

Single pages only — spreads are rejected. No crop, registration, or printer marks; IngramSpark trims automatically. Upload the interior as a separate file from the cover, and leave the final page blank so the page count divides evenly for printing.

Bleed files must carry 0.125″ of bleed on the top, bottom, and outside edges only — never the bind edge. Bleeding elements must extend the full 0.125″ to the bleed edge. Margins need a minimum of 0.5″ on all sides of the text block from the final trim size, including page numbers, and IngramSpark allows about 1/16″ of print variance — keep text well clear of the trim. Color: black-and-white interiors must be pure grayscale; color interiors need CMYK images at 300 DPI with total ink coverage not exceeding 240%, and all spot colors converted to CMYK. Note that IngramSpark charges for revised file uploads after your initial title submission, so getting it right the first time is cheaper too.

How to Preflight Your PDF Before Uploading

Preflighting is the habit that separates authors who upload once from authors who upload five times. Ten minutes in Adobe Acrobat Reader catches nearly every rejection reason.

First, check the fonts: File, Properties, Fonts tab. Every font must say “Embedded” or “Embedded Subset.” This single check eliminates the most common IngramSpark rejection. Second, check the page size (File > Properties > Description). It must match your trim size exactly, or trim plus 0.125″ per the bleed formula — a US Letter-sized PDF is an instant rejection for a 6 x 9 book. Third, check the images: zoom to 300–400% on pages with photos; soft or pixelated edges at high zoom mean the effective resolution is too low. Confirm color mode too — a black-and-white book should contain no color images; a color book should be CMYK throughout.

Fourth, check the structure: scroll through the whole file and confirm every page is single (no spreads), there are no crop marks, nothing is password-protected, and the last page is blank for IngramSpark. Search for surviving template sample text, and strip anything like “Draft_FINAL_v7” from the metadata title field. A note on EPUB tools: epubcheck validates EPUB ebooks, not PDFs — our epubcheck validation guide covers the ebook side; for print, the Reader checks above are the equivalent safety net.

7 Mistakes That Get Print-Ready PDFs Rejected

• Uploading a Word “Save As” PDF to IngramSpark — use File > Export or a PDF/X-1a preset, then verify fonts in Reader.
• Forgetting bleed on full-bleed images — anything touching the trim edge needs the full 0.125″ extension.
• Adding bleed on the binding edge for IngramSpark — bleed belongs on top, bottom, and outside only.
• Exporting spreads instead of single pages — a 2-up file is an automatic IngramSpark rejection.
• Leaving crop or registration marks in the file — platforms trim automatically.
• Using RGB images in a print file — convert to CMYK or grayscale before export.
• Uploading at the wrong page size — usually a US Letter default; the PDF page size must equal trim (or trim plus bleed) exactly.

Conclusion: Make Every Upload Your First and Final One

A print-ready PDF is not a mysterious file format — it is a regular PDF that keeps four promises: embedded fonts, correct trim size plus 0.125″ bleed, 300-DPI images in the right color mode, and a clean press-safe structure. Export from Word through File > Export (never Save As), from Google Docs only for simple text-only books, or from InDesign or Affinity Publisher with the PDF/X-1a:2001 preset. Preflight every file in Adobe Reader before uploading — fonts, page size, images, structure — and both platforms will accept your book on the first try.