I have a bunch of pictures where I need to resize each of them so that the largest dimension is 900 and save them to a folder. How might I go about writing a script to do this so that I don't have to do each one individually? Any help would be greatly appreciated.
Now that you have created the action, create a new temp folder, go to edit>automate>batch process. You will ask for the source folder (pics folder) and destination folder (the temp folder you created) and what action you want to run. This will run the action you created on the entire folder contents all at once.