Changing the Bitmap Photos

This is my old method of bitmapping. not editing the images brightness or contrast. Bitmapping it at 300 pixels per inch. so the image remains detailed. This did not work when printed in InDesign so i had to go back and redo them all. 

 Here i lightened up the image and increased the contrast.

I decreased 300 Pixels/inch to nearly half having it at 180. 

I lost some of the detail but you are still able to make out the image. 

now i have to go back and do this to about 60 images. Fun fun fun