How do I save a 27MB NEF to jpg so it is at least 17MB in Photoshop CC

[Glenn]

How do I save a 27MB NEF file to jpg so it is at least 17MB in Photoshop CC? When I go to save as jpg, it goes to 8 MB and no higher.

[M.Chapman]

17MB is the minimum uncompressed image size required by Alamy. This means the uncompressed image must contain at least 17 MegaBytes of image data. In 8 bit mode, each pixel is stored using 3 bytes of data (1 byte each for Red, Green and Blue). So the minimum number of pixels required by Alamy is 17/3 = 5.667 MegaPixels.

 

As a rough guide, just make sure your image contains at least 6 million pixels and you'll be OK, e.g. a 3000 x 2000 image is fine. 

 

When you save the image as in a jpg format file the image data is compressed to save disk space, so you will see the file size will be considerably smaller, but that's OK.

 

Mark

Edited August 25, 2018 by M.Chapman

[Glenn]

Thanks Mark!