There are a number of good image processing software options available for photographers including free and paid ones. Each have their advantages and disadvantages but often Photoshop is the choice of many. I’d like to encourage you to choose Adobe Lightroom instead as it was made for photographers, by photographers and quite simply.. Lightroom rocks!
Do you shoot RAW or JPG? Understand the benefits of shooting RAW format over JPG in camera and why. Pros and cons of each to help you make your decision which format is best for you.