Large Print Book Guide
Everything you need to format a large print edition — trim sizes, font size requirements, margins, typography conventions, and publishing considerations.
A growing market with specific conventions
Large print editions serve readers who need larger type — whether due to age-related vision changes, low vision conditions, or simple reading preference. With an aging population in the US, UK, and Europe, large print is one of the steadiest growth segments in self-publishing.
But producing a large print edition is not as simple as increasing the font size. There are specific conventions around trim size, typography, leading, alignment, and margins that make the difference between a genuinely accessible book and one that just has bigger text.
A large print edition is a separate format, which means it requires its own ISBN, its own cover file, and its own interior PDF. Most authors publish it alongside their standard edition as a distinct product listing.
Recommended sizes for large print
The right trim size gives your larger type enough room without making the book unwieldy.
The standard large print fiction size. Wide enough for comfortable line lengths at 16–18pt type, tall enough to keep page counts manageable. This is what most large print publishers use, and it's the size readers and libraries expect.
View 6×9 guide →A larger option that gives you more room on the page. Good for nonfiction or books with supplementary material like tables, diagrams, or sidebars. Reduces page count compared to 6×9 but produces a bigger physical book.
Full letter size. Best reserved for workbooks, activity books, or reference material that already needs the extra width. Not typical for narrative fiction or memoir in large print — the book becomes too large to hold comfortably.
Font size, leading, and readability rules
Large print typography is about more than size. Every choice should reduce visual strain.
| Specification | Large Print Standard |
|---|---|
| Font size | 16pt minimum (16–18pt range) |
| Leading (line spacing) | 1.5× or more |
| Line length | No more than 60 characters per line |
| Alignment | Ragged right (left-aligned) preferred |
| Emphasis | Bold for extended passages, not italics |
Font choice
Use a clean, high-contrast serif with sturdy strokes. Avoid fonts with thin hairlines or delicate features that disappear at distance. Good choices include Bookman, Century Schoolbook, and Garamond at larger sizes. Browse our Book Font Directory for typefaces that work well at 16pt and above.
Why ragged right?
Justified text creates uneven word spacing, and at larger font sizes the gaps become more pronounced. Left-aligned (ragged right) text keeps word spacing consistent, which makes it easier to track from word to word across the line. For readers who already have difficulty seeing clearly, consistent spacing is a meaningful improvement.
Avoid extended italics
Italic text is harder to read at any size, but the difficulty compounds for large print readers. For short emphasis (a word or two), italics are fine. For longer passages — internal monologue, letters, flashbacks — use bold instead, or set the passage at regular weight with a visual separator.
Recommended margins for large print
Generous margins give the text room to breathe and prevent the binding from swallowing the inside edge.
| Edge | Recommended Range |
|---|---|
| Inside (gutter) | 0.8" – 1.0" |
| Outside | 0.7" – 0.85" |
| Top | 0.7" – 0.8" |
| Bottom | 0.8" – 0.9" |
How large print affects your page count
Moving from standard formatting to large print significantly increases your page count. Here is a realistic comparison for an 80,000-word novel:
| Format | Trim Size | Font | Pages |
|---|---|---|---|
| Standard | 5.5" × 8.5" | 11pt | ~280 |
| Large Print | 6" × 9" | 16pt | ~420+ |
That is roughly a 50% increase in page count, which directly affects printing cost, spine width, and your minimum viable list price. Use the KDP Book Calculator to see exact costs for your word count at large print specifications.
Getting your large print edition to market
Separate ISBN
A large print edition is a different format, which means it requires its own ISBN. This is an industry-wide standard, not optional. Your standard paperback, large print paperback, ebook, and audiobook each get a unique ISBN.
Cover and metadata
"Large Print" should appear on your cover (typically below the title or as a subtitle) and in your title metadata on every retailer. This is how readers, libraries, and bookstores identify the edition. Without it, large print buyers cannot find your book.
Paper stock
Cream (off-white) paper is strongly recommended for large print. White paper creates higher contrast and more glare, which causes eye fatigue — exactly what large print readers are trying to avoid. Cream paper reduces glare while maintaining clear letterforms.
Pricing strategy
Large print editions are typically priced $2–$5 above the standard edition to offset the increased printing cost from higher page counts. Readers expect this and libraries budget for it. Do not undercut your own standard edition — the higher price is justified by the higher production cost.
For a detailed walkthrough of KDP formatting requirements, see our guide on how to format a book for KDP. For trim size details on the most common large print size, see the 6" × 9" trim size guide.
Large print formatting checklist
Make sure your large print edition meets every standard before you upload.
- Font size is 16pt or larger
- Line spacing is 1.5× or more
- Line length does not exceed 60 characters
- Text is left-aligned (ragged right), not justified
- No extended italic passages — bold used instead
- Inside margin is 0.8" or wider
- Cream paper selected in KDP/IngramSpark
- "Large Print" appears on cover and in title metadata
- Separate ISBN assigned for this edition
- Price set $2–$5 above standard edition
Related guides and tools
Large print FAQ
What font size is considered large print?
Do I need a separate ISBN for a large print edition?
What trim size should I use for large print?
Is large print profitable?
Should I use justified or left-aligned text for large print?
Ready to format your large print edition?
Cambric handles the specs.
Set your trim size, font, and margins once. Cambric applies them across every page, generates a print-ready PDF, and catches problems before you upload.