Image guidelines for Bookify

These are Blurb's recommendations for images used in Bookify. 

File type: JPG or PNG

Use only JPG (or JPEG) or PNG image files. 

  • JPG is fine for most images.
  • Use PNG if your image contains text or line art, like scans or photographs of printed matter or architectural plans.
  • If you use use PNGs they should be 8-bit and non-interlaced.
  • No TIFF, EPS, PDF, PICT, BMP, RAW or GIF files.

Number of images < 1000

Please note that a Bookify book project can contain no more than 1000 images maximum.

Image resolution between 150 dpi and 300 dpi

If you see a low resolution warning, you need to make the image smaller on the page or use a different image altogether. There are no other ways around this.

  • The resolution of images in Bookify should be 150 dpi minimum; 300 dpi maximum.
  • JPGs straight from a camera are generally fine as they are and don't need to be made smaller. The only time you may need to resize a image is when placing a very large image into a much  smaller container, or placing many large images on a single page. 

Image size < 25MB

  • Individual images should be smaller than 25MB in size.
  • The width of vertically oriented images should be less than 4000 pixels. The height should also be less than 4000 pixels. 

Color space = RGB

If you have no idea what color space is, no need to worry about it. For those who care about color space:

  • Images should be in RGB or Grayscale (sRGB is recommended, and is the default color space for most digital images).
  • Do not use CMYK images. 
  • If an image turns black when you drag it into Bookify, it's probably a CMYK image and needs to be changed to sRGB.


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