i'm running a website where i use a lot of big PNG-images because of the transparency and the background texture of the website. They do the job very well, but are a lot bigger than normal JPG-files.
Now i want to add a mobile version with a simple white background, so that i can use JPGs with more compression.
So my question is:
Is it possible to add one thumbnail-version as jpg while the other image sizes stay png?
i added some extra image sizes with add_image_size and i wonder if it can be modified, so that i can get a smaller image size as JPG, that would just be wonderful and easy to use.
Can you help me?
Thanks a lot!