Everyone has very individual measurements which means we all need alterations to make our clothes look good. Shortening the sleeves of a button up shirt is one of the very easiest alterations! Sleeves can only be shortened up to an 1" though, if you shorten any more you won't be able to roll up your sleeves.
button up shirt
1. Use a seam ripper to take the cuffs off. Mark (up to an 1") up from the original seam. Then mark 3/8" down for the seam allowance. Cut on the seam allowance line.
2. Pin the cuff onto the sleeve matching the top of the cuff to the marked seam line.
3. The pleats will be adjusted and deepened. You will have to play with them until they fit.
5. Make sure you caught everything on the back side.
6. Press the new pleats really well. You're done!