As mentioned in this Feature Request Client-side image resizing before upload - Megapixels (Mb) rather than Image Resolution (pixels) The BlueImp’s jQuery File Upload plugin for PHP would do this very well.
As mentioned in this Feature Request Client-side image resizing before upload - Megapixels (Mb) rather than Image Resolution (pixels) The BlueImp’s jQuery File Upload plugin for PHP would do this very well.