Downloads from Image-Line.com can be verified using a SHA-256 checksum.
Where this is available, it will be listed in close proximity to the download link. The format will be a complex series of characters such as:
You can use this code to verify the file you have downloaded is bit-perfect. The SHA-256 number calculated on the downloaded file will only match when it is identical to the file on our servers.
Image-Line Support Team.