International Standards and Conformity Assessment for all electrical, electronic and related technologies
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Drafting IEC publications



Image quality

For IEC publications, images of good quality are required. Quality comprises the following aspects:

  • clear lines in drawings / shapes (ensure an appropriate line thickness, use well-matched colours)
  • legible text (with regard to size and text colour before background)
  • harmonious ensemble of colours (avoid use of clashing colours)
  • resolution sufficient for printed output (from the original image file, we have to be able to produce a bitmap file with 200ppi [pixels per inch])
  • sufficient contrast, brightness and saturation (image needs to be viewed and interpreted without problems)
  • consistency of these aspects across the publication


Most graphic tools will allow you to configure these aspects. In case of questions, please contact the IEC Figures team.


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