Web support for content editors: Image formats – JPG or PNG


When in doubt use JPG. If you have a PNG and want to convert it, one option is picresize.com.


Some points of note:

  • Almost all images that are regular photos that one might take with a camera will fare better as JPGs,
  • PNGs are better if transparency is better.
  • PNGs are usually better if the image is line art or of a limited color palette.

If you have any questions or need help converting a batch of images, contact lib-webmaster@uiowa.edu.