Right-click the image file and choose Properties. The displayed window shows you the file size (this needs to be 200KB or smaller) and the file format, for example BMP or JPG.
See it in action (click to enlarge)
The following file formats can be used in AccountRight forms:
AccountRight v19 previously used QuickTime to display images in saved and emailed forms. Security vulnerabilities have been identified in QuickTime on Windows computers, so it's recommended you don't install QuickTime. For all the details on this issue and what you can do, see our community forum.