Step 01: Rough Crop!!
Keyboard shortcut: Hit (c)
Step 02: Rotate!
Draw a line on a vertical line (marked with red) using the Ruler tool! (Analysis > Ruler Tool)
Keyboard shortcut: Hit (i) and hold down shift and hit (i) two more times to toggle to ruler.
Rotate using Arbituary Rotation (Image > Rotate Canvas > Arbitrary…). PS calculates the number for you with the ruler, don’t have to key anything.
Step 03: CROP AGAIN!!
It’s all right to crop in 2-3 pixels as long as you’re not losing anything important.
*Once you’ve done rotating and cropping, make a backup copy of all the files, put the duplicated ones in a folder called “cleaned” and the cropped version under “raw”*
