I would like to make the product images bigger on the product page
I tried to increase these values in the following file:
<image id="product_page_main_image" type="image">
<image id="product_page_main_image_default" type="image">
But, It doesn't appear to change anything.
Magento 2 use below tag for big image
<image id="product_page_image_large" type="image"/>
you need to edit height and width for that.
After edit it, please flush the cache.
If it will work then mark as solution.