Exporting a map or chart as a JPEG

The .jpg format is best used for continuous tone images, such as photographs. It uses lossy compression, which means that some data is discarded to reduce the file size. Once a file is compressed with lossy compression, the original data cannot be recovered.

The Quality measure is the used to control the balance between the quality of the image and the reduction in the file size. The higher the Quality value, the less data is discarded. You must decide a balance between file size and image quality, which usually falls between 0 and 80. Values over 80 usually produce an increased file size with little visible improvement in image quality.

  1. In the Export Map or Export Chart window, choose JPEG (.jpg) from the Save as type list box.
  2. Enter a value that represents the resolution produced by the display or printer in the DPI spin box. The closer the match between the resolution of the file and the display or printer, the better the quality of the results.
  3. Enter a value that represents the image quality in the Quality box. The lower the number, the lower the quality of the image (more data discarded) and the smaller the file size.
  4. Click OK.

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