Choose based on purpose:
Fiction: 5"×8", 5.5"×8.5"
Academic: 6"×9"
Manuals: 7"×10", 8.5"×11"
👉 Always set your document to the final trim size, not including bleed.
Bleed: minimum 0.125" (3 mm) on all sides
Safe Margin: 0.25"–0.5" inside trim
👉 Extend images/backgrounds into bleed to avoid white edges.
Use mirror margins for books:
Margin Type and Suggested Size
Inside (Gutter)
0.75" – 1"
Outside
0.5" – 0.75"
Top
0.5" – 0.75"
Bottom
0.75" – 1"
👉 Increase gutter for thicker books (300+ pages).
Books must have pages in multiples of 4 (for folded types)
Start important sections on right-hand pages (odd pages)
Title Page
Copyright Page
Dedication (optional)
Acknowledgments
Table of Contents
Main Content
Appendices
References
Index
Body text: Serif fonts (e.g., Times New Roman, Garamond)
Headings: Sans-serif or stylized
Body: 10–12 pt
Headings: 14–24 pt
1.15 to 1.5 for readability
Avoid more than 2–3 fonts
Ensure consistent hierarchy
Use proper kerning and tracking
Use justified alignment for books
First-line indent: 0.25"
No extra space between paragraphs (for traditional books)
Avoid widows & orphans:
Widow = last line alone on next page
Orphan = first line alone at bottom
Minimum: 300 DPI for print
Use CMYK, not RGB
Preferred: TIFF, PNG, high-quality JPEG
Keep important elements inside safe margins
Full-page images must include bleed
Avoid excessive color coverage to prevent smudging or you can use a seperate thicker paper for heavily colored pages
For grayscale printing, convert properly (not just desaturate)
Top outer corner or bottom center
Do NOT number:
Title page
Copyright page
Left page: Book title
Right page: Chapter title
Start each chapter on a new page (preferably right side)
Use consistent chapter headings
Add spacing before chapter titles
✔ Correct trim size
✔ Bleed added
✔ Margins correct
✔ Images at 300 DPI
✔ Fonts embedded
✔ No missing links
✔ Colors in CMYK
✔ Page count divisible by 4
✔ No widows/orphans
✔ Proper page numbering
Format: PDF/X-1a or PDF/X-4
Include:
Crop marks
Bleed marks
Embed all fonts
Downsample images to 300 DPI (if needed)
Front cover
Spine
Back cover
Depends on:
Paper thickness
Number of pages
👉 Example:
100 pages ≈ ~0.25" spine (varies by paper)
Paper type (Bookpaper, C2S, etc.)
Binding type:
Perfect binding (common)
Saddle stitch (thin books)
Hardbound
❌ Using RGB instead of CMYK
❌ Low-resolution images
❌ Ignoring bleed
❌ Wrong margins (text too close to binding)
❌ Inconsistent fonts
❌ Incorrect page order
Always print a physical proof copy
Use master pages for consistency
Use styles (Paragraph/Character) instead of manual formatting
Double-check black text is 100% K (not rich black)