Download old version of TechSmith Snagit or Camtasia If it was on your computer which you’ve downloaded before, that’s fine, if not, where you can find it? Or how to download an older version of Snagit or Camtasia from the TechSmith website, we’ll tell you about that below. If you’ve recently upgraded to Snagit 2018 from Snagit 13 or Snagit 11, and if you don’t like the new version, you can switch to the old or previous version, but for that, you need to have the setup file of that version needed.