Quote Originally Posted by pasi View Post
Tried to search but got too many results to go through them all...

Anyway, the problem is that some images are in GIF format. JPG images are resized correctly, but the GIF images aren't resized at all.

Before I go deeper into checking what is wrong, I wanted to ask if IH4 actually supports resizing GIF images, or if there is any known "issues" or "fix" to this.
There are issues in many cases related to resizing .gif images, and a lot of on-the-fly image resizers either can't resize .gifs, or don't because of issues. The biggest issue I've seen resizing .gifs is that since they are already in indexed color mode, you almost always get really bad looking images. In addition, there are copyright issues with publishing .gif images on the web that you should be aware of...

I can't speak as to whether IH4 should handle .gifs for you or not, but I would strongly encourage you to replace those .gof images with either .png or .jpg versions, which will address the issue you are seeing and the problems with resizing .gifs.