8.5" × 11" Paperback Cover Dimensions: 150 Pages, B&W White
PDF Width
17.5878"
1266.32 pt
PDF Height
11.2500"
810.00 pt
Spine Width
0.3378"
24.32 pt
How These Dimensions Are Calculated
spine_width = 150 pages × 0.002252" = 0.3378"
pdf_width = (2 × 8.5") + 0.3378" + 0.25" = 17.5878"
pdf_height = 11" + 0.25" = 11.2500"
pdf_width = (2 × 8.5") + 0.3378" + 0.25" = 17.5878"
pdf_height = 11" + 0.25" = 11.2500"
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 8.5"] [Spine 0.3378"] [Front Cover 8.5"] [0.125" bleed]
Key Specifications
- Trim size: 8.5" × 11"
- 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 | 17.5878" | 1266.32 | 446.73 mm | 5276 px |
| PDF Height | 11.2500" | 810.00 | 285.75 mm | 3375 px |
| Spine Width | 0.3378" | 24.32 | 8.58 mm | 101 px |
The 150–299-page range at 7" × 10" is the standard for technical manuals, photography guides, art history books, and professional reference material. At 200 pages the spine is 0.4504", giving solid room for a clean title-and-author line. Technical publishers from O'Reilly to Wiley use formats in this family. The wider page accommodates two-column layouts, wide code blocks, and large diagrams without sacrificing readability. Total PDF widths at this configuration run from about 14.25" to 14.60" — confirm your source imagery is at least 300 DPI at these final dimensions.