Do I have to upload a PDF for KDP print?
If your interior uses bleed, yes: upload PDF for manuscript content. Without bleed, KDP may accept other formats and convert them.
Follow the full manual KDP method: lock trim and bleed, set Word page size and margins by page count, clean manuscript structure, verify images/fonts, export a clean PDF, run KDP Previewer, then fix source issues and re-export.
A print-ready PDF is not just a file that looks fine on your screen. KDP checks structure and print constraints repeatedly.
1. **Page size matches your trim size** (and bleed if you selected bleed).
2. **Margins and gutter match page count** so binding space is safe.
3. **Fonts and images are embedded and printable** at production quality.
4. **The PDF is clean** (no crop marks, no comments, no locked security, no hidden artifacts).
The manual method works, but only if you do setup in the right order and fix source content instead of patching PDFs.
If you change trim size, bleed, or paper assumptions late, Word can reflow pages and force another margin and pagination cycle.
Choose trim size first. 6" x 9" is common for US paperbacks, but use the trim your edition requires.
Decide bleed before formatting. If any element prints to the page edge, use bleed and set PDF page size to trim plus bleed.
Bleed sizing rule for interior PDFs: add 0.125" to width and 0.25" to height (example: 6" x 9" trim -> 6.125" x 9.25").
Pick paper and ink assumptions early because page-count ranges and interior requirements vary by format.
1A) **Set page size first.** In Word: Layout -> Size -> More Paper Sizes.
• No bleed: use exact trim size.
• With bleed: use trim plus bleed dimensions.
• After page-size changes, recheck margins because text will reflow.
1B) **Set mirror margins and gutter logic.**
• Layout -> Margins -> Custom Margins.
• Multiple pages: Mirror margins.
• Apply to: Whole document.
• Keep Word gutter field empty/zero when using mirrored inside margins.
1C) **Use page-count-based inside margin minimums.**
• 24-150 pages: inside 0.375".
• 151-300 pages: inside 0.5".
• 301-500 pages: inside 0.625".
• 501-700 pages: inside 0.75".
• 701-828 pages: inside 0.875".
Outside margin minimums: no bleed at least 0.25", with bleed at least 0.375".
Before styling, turn on formatting marks and clean the source so exports stay predictable.
2A) **Turn on formatting marks.**
• Remove tab-based indents, repeated spaces, and manual line-break spacing.
• Remove extra blank paragraphs used as visual separators.
2B) **Use styles instead of hacks.**
• Normal for body text.
• Heading 1 for chapter titles.
• Keep paragraph spacing and first-line indents controlled in paragraph settings.
2C) **Start chapters consistently.**
• Use page breaks for chapter starts.
• Avoid pressing Enter repeatedly to force visual spacing.
This is where many manual Word files break. Keep section logic clear before export.
3A) **Create a front-matter section and a body section** with section breaks between them.
3B) **Use Roman numerals for front matter** only if you need them.
3C) **Start Chapter 1 at Arabic page 1** for your main body.
3D) **Unlink headers/footers across sections** before final export.
3E) **Use Different First Page** on chapter-open pages if your design requires it.
4A) **Use print-safe image quality.**
• Target at least 300 DPI source images for print interiors.
4B) **Insert images cleanly.**
• Insert -> Pictures instead of copy/paste from unknown sources.
• Avoid enlarging low-resolution images after insertion.
4C) **Disable Word image compression.**
• Turn off automatic compression so print quality is preserved.
4D) **If bleed is enabled, your image content must actually bleed.**
• Extend bleed-edge artwork beyond trim and confirm PDF page size includes bleed.
5A) **Embed fonts before PDF export.**
• In Word: File -> Options -> Save -> enable 'Embed fonts in the file'.
• Keep restrictive embedding sub-options disabled so full embedding is not blocked.
5B) **Verify embedded fonts in the exported PDF.**
• In Acrobat: File -> Properties -> Fonts.
• Confirm fonts show as embedded or embedded subset.
5C) **If a font will not embed, switch fonts early.**
• Some fonts fail due to licensing or technical constraints.
KDP-safe export means clean file structure, not just visual correctness.
• No crop marks, trim marks, comments, hidden objects, or watermarks.
• Do not lock or encrypt the PDF.
• Prefer standards-compatible export settings (PDF/X or PDF/A workflow depending on your tooling).
• Keep image downsampling/compression from degrading print content.
• Keep total file size within KDP limits (currently 650MB maximum).
If something is wrong, fix source content and create a fresh PDF. Avoid patching release PDFs directly.
After upload, use KDP Print Previewer in Bookshelf and inspect pages deliberately.
• Margins and gutter safety: no text outside safe print regions.
• Bleed match: if bleed is selected in KDP, confirm the PDF sizing and artwork align.
• Page numbering: starts where intended and does not restart unexpectedly.
• Blank pages: intentional vs accidental.
• Image quality: no pixelation or transparency artifacts.
• Chapter starts: stable after last edits and not drifting across exports.
This is the core anti-tax rule: Previewer finds issue -> fix in source -> export fresh PDF -> recheck Previewer.
8A) **Trim size mismatch:** page size does not match trim/bleed settings.
8B) **Insufficient bleed:** bleed selected, but page dimensions or image edges do not extend correctly.
8C) **Text outside margins:** inside/outside margins too tight, or floating objects too close to edges.
8D) **Fonts not embedded:** embedding disabled or font cannot embed.
8E) **Low-resolution images:** replace source assets; metadata-only DPI edits do not improve quality.
Most books pass with one serious fix pass when setup order is correct.
• [ ] Page size matches trim (or trim plus bleed).
• [ ] Margins and gutter match your page-count range.
• [ ] Interior file uses single pages (not print spreads).
• [ ] Images are at least 300 DPI and inserted cleanly.
• [ ] Fonts are embedded and verified in PDF properties.
• [ ] PDF has no crop marks, comments, watermarks, or locked security.
• [ ] File size is below KDP upload limits.
• [ ] KDP Print Previewer is clean across representative pages.
If you would rather stay focused on writing and still publish with confidence, Senswriter is built around one workflow: write, export, preview, and publish.
• Write and organize front matter, chapters/scenes, and back matter in one web workspace with cloud projects and autosave.
• If connection drops briefly while a tab stays open, edits can queue and sync when connection returns.
• Generate print-ready PDF + cover PNG, EPUB, and DOCX from the same project.
• In hosted Senswriter, exports are subscriber-only: try the workflow first, then subscribe when ready to generate publish files.
• AI Assist is optional BYOK (you add your own API key only if you want AI help).
• Always run exported print files through KDP Print Previewer before final upload.
Use the same workflow in one workspace: draft, export, run checks, fix source, and publish one clean release-candidate file.
If your interior uses bleed, yes: upload PDF for manuscript content. Without bleed, KDP may accept other formats and convert them.
Wrong setup order, wrong bleed selection, or inside margin values that do not match page count are common causes.
Use at least 300 DPI source images for print interiors and avoid enlarging low-resolution assets in Word.
No. KDP expects interior files without crop/trim marks, comments, or locked security flags.
Page size, margins, fonts, and paragraph spacing can reflow pagination. Fix source, export fresh, and rerun Previewer.
Some fonts fail due to licensing or technical restrictions. Test early and switch fonts if embedding does not hold in the exported PDF.