5" × 8" Paperback Cover Dimensions: 150 Pages, B&W White
PDF Width
10.5878"
762.32 pt
PDF Height
8.2500"
594.00 pt
Spine Width
0.3378"
24.32 pt
How These Dimensions Are Calculated
spine_width = 150 pages × 0.002252" = 0.3378"
pdf_width = (2 × 5") + 0.3378" + 0.25" = 10.5878"
pdf_height = 8" + 0.25" = 8.2500"
pdf_width = (2 × 5") + 0.3378" + 0.25" = 10.5878"
pdf_height = 8" + 0.25" = 8.2500"
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 5"] [Spine 0.3378"] [Front Cover 5"] [0.125" bleed]
Key Specifications
- Trim size: 5" × 8"
- Page count: 150 pages
- Paper type: Black & White on White Paper
- Bleed: 0.125" on all outer edges
- Safe margin: 0.25" inside trim line
- Spine text: Allowed (150 ≥ 79 pages)
- 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 | 10.5878" | 762.32 | 268.93 mm | 3176 px |
| PDF Height | 8.2500" | 594.00 | 209.55 mm | 2475 px |
| Spine Width | 0.3378" | 24.32 | 8.58 mm | 101 px |
Paperbacks in the 150–299-page window at 5"–5.25" × 8" are the backbone of genre fiction: romance, mystery, thriller, and YA. Authors like Nora Roberts and James Patterson built their backlists on exactly this size and page range. Spine widths run from about 0.34" to 0.67", giving solid room for title and author text. The small trim keeps printing costs low and fits easily in readers' hands. When designing spine text, maintain at least 0.0625" clearance from each edge of the spine to avoid printing bleed overlap.