I noticed that the new Photos.app reduces image size on export. If I drag & drop a photo from the Photos library, the size is reduced by at least 50%.
How do I get rid of this behavior and recover my original photo file?
Answer
File > Export > Export Unmodified Original…
will export a full size image to the folder of your choice.
Attribution
Source : Link , Question Author : Antzi , Answer Author : Jaime Santa Cruz