How to optimize Opencart images for SEO?

@virginie 

1. Use descriptive file names: Rename your images to include relevant keywords that describe the product or category they are associated with. This can improve your chances of ranking for those specific terms.
2. Optimize image size: Large image file sizes slow down page load times, which can negatively impact your SEO rankings. Use an image compression tool to decrease the size of images without sacrificing quality.
3. Use alt tags: Alt tags are used to describe your images to search engines because they can’t read images. Use descriptive keywords in your alt tags to help search engines understand what your images are about.
4. Use proper image dimensions: Use recommended image dimensions for different areas of your website to ensure they display properly on all devices. This includes product images, category images, and banner images.
5. Use a sitemap: Include your images in your sitemap to make it easier for search engines to crawl and index them. This can increase the visibility of your images in search results.