How can I make the large view of images fit in the image viewer?
First, select appropriate image viewer size from “Image Gallery Properties > Popup Viewer > Popup dimensions”. The large view of images will automatically be prepared by Mosaic Site Creator so that the smaller side of the image fits in full in the dimensions set for the image viewer with an option to pan in order to view the rest of the image. If you wish the large view of your images to fit in full in the image viewer, in “Popup Viewer section”, select “Show Advanced Options” and check the “Scale to Fit check” box. See also Advanced Galleries tutorial How to define the best settings for your image gallery When clicking on a thumbnail in my Image Gallery the pop-up with large view wouldn’t open.