Raster Images

Low-resolution images are one of the leading causes of art resubmission and schedule delays. Submitted raster (i.e., pixel based) images must meet the minimum resolution requirements. Raster images can be classified as monochrome (line art), halftone, or combination halftone. Acceptable file formats for raster images are TIFF, EPS, PDF, and JPEG.

  • Monochrome (1 bit) images: Common examples are graphs and charts made of solid black and white with no gray values. The preferred resolution is 1,000–1,200 dpi at publication size.
  • Combination halftone: Common examples are color or grayscale figures containing halftone and line-art elements. The preferred resolution is 600–900 dpi at publication size.
  • Halftone: Common examples are color or grayscale figures containing images only with no text or thin lines. The suggested minimum resolution is 300 dpi at publication size.