In order to be able to see the scanned invoice image in IIS, you’ll need a TIFF-viewer installed on your computer.
Ibistic has developed such a TIFF-viewer and this viewer is used by default in Ibistic Invoice System.
If you wish more functionality in your TIFF-viewer you can download the free software Alternatiff. The software can be downloaded at http://www.alternatiff.com. If you have this software installed on your computer your invoices will automatically appear in Alternatiff instead of the Ibistic TIFF-viewer.