6" × 9" Paperback Cover Dimensions: 78 Pages, B&W White
PDF Width
12.4257"
894.65 pt
PDF Height
9.2500"
666.00 pt
Spine Width
0.1757"
12.65 pt
How These Dimensions Are Calculated
spine_width = 78 pages × 0.002252" = 0.1757"
pdf_width = (2 × 6") + 0.1757" + 0.25" = 12.4257"
pdf_height = 9" + 0.25" = 9.2500"
pdf_width = (2 × 6") + 0.1757" + 0.25" = 12.4257"
pdf_height = 9" + 0.25" = 9.2500"
The 0.25" added to both width and height accounts for 0.125" bleed on each side. Your cover image must extend into this bleed area to avoid white edges after trimming.
Cover Layout (Left to Right)
[0.125" bleed] [Back Cover 6"] [Spine 0.1757"] [Front Cover 6"] [0.125" bleed]
Key Specifications
- Trim size: 6" × 9"
- Page count: 78 pages
- Paper type: Black & White on White Paper
- Bleed: 0.125" on all outer edges
- Safe margin: 0.25" inside trim line
- Spine text: Not allowed (78 < 79 pages required)
- Barcode reserve: 2" × 1.2" on back cover
- Resolution: 300 DPI, RGB color space
Dimensions in Multiple Units
| Measurement | Inches | Points (pt) | Millimeters | Pixels (300 DPI) |
|---|---|---|---|---|
| PDF Width | 12.4257" | 894.65 | 315.61 mm | 3728 px |
| PDF Height | 9.2500" | 666.00 | 234.95 mm | 2775 px |
| Spine Width | 0.1757" | 12.65 | 4.46 mm | 53 px |
A short book at 5.5"–6.14" × 8.5"–9.21" with white paper produces a spine of 0.18" or less. Trade paperback dimensions at minimal page counts are used for pamphlets, academic lecture supplements, and special-edition sampler chapters. The large page area lets you use generous margins and typeset at 12 pt for maximum accessibility. Spine text is not permitted below 79 pages — leave that space clean. Make sure your front and back covers have enough visual contrast at this trim size; the wider format gives more canvas but also more empty space to fill thoughtfully.