Are there guidelines for maintaining image quality while optimizing file size?

Yes, here are some key guidelines to maintain high image quality while keeping file size optimized for web and product listings:
 

• Use the right file format:

JPEG: Great for photos (balanced quality + small size)
PNG: Best for transparency or sharper images
WebP: Modern, smaller files with good quality (if your platform supports it)
 

• Resize before uploading:

Don’t upload large raw images (e.g., 4000px wide) if your display needs only 800px.
Common recommended width: 800–1200px for product images
 

• Compress without visible quality loss:

Use tools like TinyPNG, Squoosh, or ImageOptim
Aim for image size under 500KB, ideally 100–300KB for fast load