This is pretty obvious - but you need photoshop open, right?! lol.
Anyway, import your desired photo. I do this by dragging and dropping the image from a folder or the desktop straight onto the canvas in photoshop.
If you like to import photos through the menu system within photoshop - by all means, do it that way! The goal here is to get the image you desire to flip, inside of photoshop.
If you haven't edited the photo in question yet, don't worry. You can edit it before or after you flip it. It's entirely up to you.
If I feel that flipping an image will improve the perspective and/or composition of an image - I normally flip it before I edit it.
I have edited it before flipping an image and found that I should have done it before and I would have edited it completely different (seeing as everything is now backward or upside down).
Again, you do your thing - no is no wrong way or answer here. Whatever works best for you and your needs.
Now that you have the image in photoshop and have it edited already or you're going to edit it later - you can now transform it.
I will include two different and equally effective ways to flip your images either horizontally or vertically.
In the photoshop menu - go to edit then go down to transform. The menu that pops up includes flip horizontally and flip vertically.
Click whichever one you desire. Your image will now be flipped.
You also have the option to use the keyboard shortcut ctrl+T.
This will bring up the transform toolbar at the top of Photoshop. I look at this specifically - not because I use it to transform anything... but by seeing it, I know that I'm in transform mode.
Once I see this toolbar - I know I can right-click the image and the transform window will pop up.
At the very bottom are two options for flipping vertical or horizontally.
Personally, I find the ctrl+T method to be faster than edit>transform. But regardless, either option will yield the exact same result which is flipping your image.
Whichever option is easier for you to execute and remember, is the one you should choose and use going forward.
Pretty easy right?!
Believe me, photoshop can be overwhelming, and trying to remember everything can be pretty daunting. But much like anything else in life, the more you use something and find a method to repeat over and over again... you'll be amongst the other photoshop wizards that are out there!
Be sure to check out some of our other articles such as The Best Photography Exercises For Beginners, How You Could Double Your Yearly Profits Using ShootProof, or Is Getting Into Photography Worth It?
Until next time, be safe out there and never stop creating!