They think “large print” just means bump the font size to 16 and hit export.
Then the proof comes back looking like a school worksheet. Weird spacing. Lines breaking awkwardly. Page count exploding. And worse—it’s technically large print, but still hard to read.
I’ve fixed hundreds of these. Same pattern every time.
Let’s walk through it properly so you don’t have to guess.
What “Large Print” Actually Means (Not What People Think)
Most people assume it’s just font size. That’s maybe 30% of the job.
Large print is about readability under strain—older eyes, low vision, fatigue, poor lighting.
The standard most publishers quietly follow:
- Font size: 16pt–18pt
- Line spacing: 1.3–1.6
- Font style: simple, open shapes (not decorative)
- Contrast: pure black on white (no gray text)
- Line length: shorter than standard books
But here’s the part nobody tells you:
If your line length and spacing are wrong, even 18pt becomes hard to read.
That’s why your file might “look big” but still feel uncomfortable.
The #1 Reason Large Print Books Feel Wrong
It’s not the font. It’s the line width.
You stretched your text across a normal page width.
That creates long lines. Long lines force the eye to travel too far horizontally. Older readers lose their place.
Think of it like this:
- Normal book → long lines are fine
- Large print → shorter lines are critical
Here’s a quick comparison:
| Setting | Standard Book | Large Print (Correct) |
|---|---|---|
| Font Size | 10–12pt | 16–18pt |
| Line Length | Long | Short to medium |
| Line Spacing | Tight | Airy |
| Margin Size | Small | Larger |
Fix: Increase margins so the text block becomes narrower.
That one change fixes 70% of readability issues.
Font Choice: Stop Overthinking This
I’ve seen people spend hours picking fonts. Wrong focus.
You want fonts that don’t fight the eye.
Use one of these and move on:
- Garamond (classic, soft on eyes)
- Georgia (great for digital + print crossover)
- Times New Roman (yes, still works)
- Arial (for ultra-clean sans serif)
- Verdana (very readable at large sizes)
Avoid:
- Thin fonts
- Decorative fonts
- Condensed fonts
- Anything “modern minimalist”
If the letters look stylish, they’re probably harder to read.
Line Spacing: Where Most Files Break
Here’s what I see all the time:
- Font increased
- Line spacing left at 1.0 or 1.15
Result? Crowded text. Eyes strain.
Large print needs breathing room.
Use:
- Minimum: 1.3
- Sweet spot: 1.4–1.5
But don’t guess. Zoom out and check:
Can you track one line without drifting into the next?
If not, spacing is too tight.
Margins: The Quiet Fix That Changes Everything
People hate increasing margins because it increases page count.
I get it. Printing cost goes up.
But here’s the tradeoff:
- Tight margins → cheaper book → worse experience
- Proper margins → more pages → actually readable
For large print:
- Inside margin: 0.8″ – 1″
- Outside margin: 0.6″ – 0.8″
- Top/Bottom: 0.8″ – 1″
And here’s the trick most miss:
The goal is not margins. The goal is a comfortable text block.
You’re shaping a reading window.
Paragraph Styling: Keep It Simple or It Backfires
Fancy formatting kills large print readability.
Do this instead:
- First-line indent: 0.3″ – 0.5″
- No extra spacing between paragraphs (for fiction)
- Left align or justified (but check spacing issues)
Watch for this problem:
Justified text + large font = weird spacing gaps.
If you see rivers of white space, switch to left align.
Page Size: This Decision Changes Everything
You can’t treat large print like a normal 6×9 book.
It gets cramped.
Better options:
- 7×10
- 8×10
- 8.5×11 (common for true accessibility editions)
Why?
Because larger pages allow:
- Bigger font
- Better spacing
- Fewer awkward line breaks
Trying to force large print into a small trim size is where most projects collapse.
Page Count Shock (And Why It Happens)
You format a 200-page manuscript…
Suddenly it’s 350+ pages.
Nothing is wrong. That’s expected.
Here’s why:
- Bigger font = fewer words per page
- Larger spacing = more vertical space used
- Wider margins = smaller text area
If you try to “fix” this by tightening things?
You ruin readability.
Headers, Footers, and Page Numbers
Keep them minimal and clean.
- Page numbers: slightly smaller (12–14pt)
- Headers: optional
- Avoid clutter
And this matters:
Don’t let headers crowd the text. Give them space.
The Weird Edge Case Most People Hit Once
This one always surprises beginners.
You export your PDF… looks fine.
Upload to KDP or print…
Suddenly:
- Text shifts
- Line breaks change
- Pages reflow
Why?
Font embedding or layout inconsistencies.
Fix:
- Always export as PDF (print-ready)
- Embed fonts
- Don’t rely on system fonts that might swap
And before uploading:
Open the PDF on a different device. If it changes, your file isn’t stable.
Quick Diagnostic Checklist (Run This Before You Publish)
If something feels off, scan this:
- Is the font at least 16pt?
- Are lines comfortably spaced (1.4-ish)?
- Do lines feel too long? (increase margins)
- Is the page size too small?
- Does the text look crowded when zoomed out?
- Are there weird spacing gaps? (justification issue)
If even one answer feels shaky, fix it now.
The One Thing I Wish Everyone Knew
Large print is not about making text bigger.
It’s about reducing effort per line.
Every decision—font, spacing, margins, page size—is working toward one goal:
Let the reader move through the page without friction.
If you keep that in mind, you’ll make the right calls instinctively.
Still Feels Off? Here’s What You Do
Print 2–3 pages.
Not on your screen. On paper.
Sit back. Read it like a reader—not a formatter.
You’ll notice things immediately:
- Lines feel too long
- Text feels dense
- Eyes get tired faster than expected
That’s your real test.
Fix those, and you’re done.
No guessing. No second-guessing.
You’ve got a proper large print book.