Support › General › Limiting or validating uploaded image size
I have a single image field, how do I set that only images of size 300x250 px can be uploaded to that field? In case any other size, the field should throw a validation error message.
There is no option/setting to limit the resolution of the uploaded images. You can limit the uploaded file size by using the setting max_file_size of the field image_upload
Get more details on the documentation https://docs.metabox.io/fields/image-upload/#settings