Need Help Getting CS5 on my New MacBook Pro

Your options depend on the level of work you need to do. If you were intentionally staying back on old CS5 because you just don’t do image editing that often and don’t need any of the latest professional features,  then you probably don’t need the current version of Photoshop, because it is probably far too powerful and expensive for what you do.

If that is true, then you should explore these options:

Adobe Photoshop Elements. This is the consumer version of Photoshop, and it has several things going for it. It is only available as a buy-once purchase, no subscription. It is often available from other stores for well under US$100, especially if you watch the sales around the holidays. And unlike CS5, it is current, so it has many newer features you won’t find in CS5, and it is also compatible with the latest operating systems.

Non-Adobe alternatives. The Mac has a wealth of inexpensive (US$20–50) image editors that work very well and are kept up to date. They are generally nowhere near as powerful as the full subscription version of Photoshop, but some are actually more powerful than CS5 was. If you want to look into them, those applications include Affinity Photo, Pixelmator Pro, Acorn, and Polarr. Some of them can open and save layered Photoshop documents. If you want to primarily edit camera raw files, there is a different list of alternatives.