What are the technical requirements for photo or bitmap illustrations?
The size requirement for new contributors is 4.0MP. (Contributors who have been uploading to Shutterstock for some time may continue to upload 2.5MP images until further notice.) There is no maximum size limit for photos, but illustrations cannot exceed 25MP. To determine the amount of pixels in an image, multiply the width by the length. For example: a photo that is 2400×1800 adds up to a total of 4.32 million pixels, so a photo of this size is valid. However, a photo which is 1000×1600 adds up to a total of 1.6 million pixels, which is smaller than our minimum size requirement for new contributors.
