ACF Image Sizes allows you to choose which image sizes are generated for ACF image and gallery fields.
ACF图像大小允许您选择为ACF图像和图库字段生成的图像大小。
This approach means you won’t end up with image sizes that you just don’t need, which can save a considerable amount of space on your server and CDN.
这种方法意味着您最终将不会获得不需要的图像大小，这可以节省服务器和CDN上的大量空间。
Note: Until ACF 5 is released, this plugin only works with ACF Pro.
注意：在发布ACF 5之前，此插件仅适用于ACF Pro。
How does it work?
它如何工作？ When you create an ACF image or gallery field type, there will be a list of all available image sizes.
创建ACF图像或图库字段类型时，将列出所有可用图像尺寸。
Check the sizes you want to create, now when you upload images to those fields, only the selected sizes will be created.
检查要创建的尺寸，现在，当您将图像上传到这些字段时，将仅创建选定的尺寸。
Bulk Optimise
批量优化
If you already have a site with ACF fields, you can use the bulk optimiser to remove or add images based on your selections.
如果您已经有一个带有ACF字段的网站，则可以使用批量优化器根据您的选择删除或添加图像。
Edit your ACF fields to select the image sizes you want, then go to Tools > ACF Image Sizes to run the bulk optimiser.
编辑ACF字段以选择所需的图像尺寸，然后转到“工具”>“ ACF图像尺寸”以运行批量优化器。
