We use Snagit for screenshots in our technical documentation. We need to adjust the DPI in Snagit for Mac, not - as the instructions indicate - to save the file and then open it in Preview or Photoshop to change the DPI. We add borders and callouts to the screenshots, and they're done by writers, not graphics professionals. So if we export a screenshot to Preview, then adjust the DPI, we'd have to bring it back into Snagit to add the borders, numbers, and callouts (otherwise they will expand/contract when the DPI gets adjusted and be the incorrect size). But if we bring the newly resized DPI image *back* into Snagit, it will auto-adjust it to 76 (or whatever the default is). So we physically can't do our work and have to look for a different program.