But she is right.. This app really doesn't do anything more except manage your images. It will create all the proper image dimension sizes based on the settings you provide. It will do some VERY simple image effects (currently only applies to small product images displayed in sideboxes and on the product listing pages -- zooming on medium images is not supported/working) It will do some image compression to improve image loading performance, and lastly it manages the file naming convention required by Zen Cart to link additional product images to the correct product.
IH2 is a very straightforward install and usually when it stops/doesn't work there are one of a few reasons why:
- Changes to the template files which remove core Zen Cart code IH2 needs to work properly
- Javascripts either from other mods or java slideshows and such which conflict with the IH2 javascript
- IH2 files are not copied to the correct location
- Mixed file formats for main product and additional images (For example: main product image is a JPG and additional images a PNGs
- Case mix-ups between the main product image and the additional images (For example: the main product image file name is all upper case and the additional images file names are all lowercase)
IH2 doesn't affect the style or layout of images on the product details or product listing pages. (You didn't ask this, but I certainly have seen some recent questions on this count) It only affect the behavior of the image on these pages.
Once you install the files, set your image settings, and activate it, it really should just work.. If it doesn't that truly usually means that there are other things going on with the site that are interfering with IH2 functioning as it should.
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