How to copy Adjustments to another photo?

I do not believe there is any way - suggest to Apple - http://www.apple.com/feedback/photos.html

LN

How to copy Adjustments to an other photo in the Photos App?

You can copy and paste adjustments from one photo to another,, but only while in Edit mode. And only to one image at a time.

• To copy the adjustments from one photo open it in Edit mode, then use the command "Image > Copy Adjustment" or the key combination ⇧⌘C to lift the adjustment.
• Now open the destination image in Edit Mode and paste the adjustment with "Mage < Paste adjustment" or the key combination ⇧⌘V.

if you keep all photos in an album where you want to stamp the adjustments to, you can open the first image in the album in edit mode and then use the arrow keys to step between the images in Edit mode to quickly stamp the adjustment onto all of them.