And, you now have your guides centered in the image.
Now, if you wanted to make an action to do exactly what we have just done to create an action for creating centered guides, the action would not work. The reason for this not working is because our Rulers are in inches not percent. We need to change the Rulers to percent before creating the action. Control-click (Right-click) on the Ruler to open up the menu and select Percent. The Rulers are now in percent. I brought in the Actions panel so it is easier to see.
And, I gave the action the name Centered Guides. I didn't assign a Function Key to the action (you can if you want). And, I didn't give the action a Color (you can if you want).
The first thing is to go to View/New Guide.
And, we now have our centered guides and we can click on the Stop playing/recording button at the bottom of the Actions panel.
Here I have opened an 8 x 6 inch document and the rulers are in inches. I select the Centered Guides action in the Actions panel and clicked on Play selection. And, lo and hold, we have our centered guides in place. It works!
Now let's create a new action to put guides on the image that are Rule of Thirds guides. This is what we want to guides to look like when the action is finished running. We have a guide that is one-third (33.3%) of the distance from the left edge. Another that is two-thirds (66.6%) from the left edge. There is one guide one-third (33.3%) from the top. And, another two-thirds (66.6%) from the top.
There is one more thing that you should do. That is to save your action. Your action will normally be in your Actions panel, but if you should have to reinstall Photoshop onto your computer, your actions will be back just to the default set that comes with Photoshop. Or, if you reset Photoshop back to its defaults, you will only have the default set.To save your Set 1, click on the little menu icon in the upper right of the Actions panel. Select Save Actions. You have to save action sets; you cannot save an individual action. If you have an individual action selected, Save Actions will be grayed out and you can't use it. So make sure Set 1 is selected.
For users of Photoshop Elements, you can use actions created in Photoshop. Here is what Adobe has to say about installing Actions in Elements.
You can download this Set 1 action we just created for your use from box.com (go to the Quick Tips page to do so). If you are using Elements, you can install it and use it. If you are using Photoshop CS series, you can also download it if you want. But, you should already have it if you were following along with me while I created it.
I hope that you found this Quick Tip interesting and useful.
Enjoy what you are doing!