When I export a TIFF image, what does the High Resolution option do?
When exporting TIFF images from v4.1 and earlier, the High Resolution option enables you to export TIFF files that have a resolution of 288 dpi. This can be increased to 576 dpi by turning off High Resolution and setting the Scale by field to 800%.
In v5, it is possible to export TIFF images with a maximum resolution of 1400 dpi.