What is the recommended image size/pixel size/resolution for images added to my Wix site?
You can resize an image on your Wix site by clicking and dragging the resize circles around the edges of the image.
Make sure to optimize your images according to these guidelines.
If you are unhappy with the quality of your image, we recommend resizing it to the exact size that it will be displayed on your site.
You can work out the exact size by looking at the image's width (w) and height (h) from the bottom of image's Settings panel in the Editor.
If the image is in an Expand Mode window, you can use this Chrome Extension to determine the exact dimensions of your the image and resize it accordingly.