Product Personalizer uses Shopify’s CDN to save personalized images and Uploaded images by Customer.
Shopify recently introduced .webp format (see the newsletter here )
Shopify automatically changes the filetypes to .webp
To save the images as the original file type do the following
- Go to the Orders in the Shopify Dashboard
- Click on an Order
- Over the image right click > save link as…
This will save the image as the original file type and not .webp