Old Imposition Wizard Standalone crashes on macOS Sierra 10.12

This usually happens when you upgrade your older OS X to Sierra. Something goes wrong with permissions and this may lead to Imposition Wizard issues. If you experience that, please do the following:

1. Quit Imposition Wizard;
2. Uninstall it from Applications folder by dragging into the Trash can;
3. Open Finder, click its Go menu, then click "Go To Folder";
4. Type or paste ~/Library/Preferences/ there (note the "~" symbol at the beginning) and open the folder;
5. Erase the com.appsforlife.ImpositionWizard.plist that lives there;
6. Empty the Trash can;
7. Restart your Mac;
8. Make a clean installation of Imposition Wizard.

Imposition Wizard should work just fine after that.