Your cover size must match your trim size and platform requirements.
For ebooks:
- Recommended: 1600 x 2560 pixels minimum
- Format: JPEG or PNG at 300 DPI
For print:
- Size = front + spine + back + bleed (0.125″ on each edge)
- Must be exported as a PDF
- Spine width depends on page count and paper type
Always use the template provided by KDP, IngramSpark, or your printer for precise measurements.