Guides

Guides Is a very normal word or expression for those who deal with adobe Photoshop. Guides are guiding lines. They can guide you through your work or your design, but they aren't considered as a part of the photo.

you can add any number of guides to your photo during your work session, and at the end when you save your photo you won't find these lines in the produced photo. The guides remain in Photoshop; they don't come out with the photo. & Guides are not limited; you can add unlimited number of guides on your photo.

These red lines you see are guides I’ve made.

But how I made them?

There is two different ways.

The first one

From the view menu choose (new guide)

choose horizontal or vertical guide. and In the position field write the distance that will be between the guide and the photo border (left border with vertical guide - top border with horizontal guide).

You can write the distance in inches like that (5 in) or in centimeters like that (5 cm), etc…

This way is very accurate because you define a specific distance, but it takes a lot of time to make a guide & you can only make one guide each time, which means you have to repeat these steps with every new guide

the other way to make your guides
press Left click on the ruler and drag a guide from it to anywhere. It’s that simple.

How to show the ruler? From view menu choose rulers.

to hide guides

You can hide (not erase) the guides like that

View < show < guides

And do that again to show them back

to erase or move guides

To erase all your guides with one click

From view choose clear guides

(note: you don't need to erase the guides before saving your image since they by default don't come out with the image)

To erase only one guide

Choose the move tool

And pick the guide and drag it to the ruler

You can also use the move tool to just move your guide

& if you want to disable this option by which you can move guides with move tool, you'll need to lock guides like that

color & style of guides
You can change the guides colors 

Edit < preferences < guides, grid & slices...

And in the guides box you can change the color and the style of your guides

Note: You can also open the preferences window by double clicking on the rulers

why there is guides !!???

Now you know how to make, hide, move and erase your guides and how to change their color and style

But how you can use them? How they can help you?

Of course they organize the way you see your photo with these splitting lines, but that’s not the most important benefit

Each guide is surrounded by something like a magnetic field; it helps you to position your objects rightly or to make a right selection.

Guides can pull the borders or the center of an object while moving it, or pull the borders of a selection while making it

So you can make accurate guides with accurate distances as I told you earlier(view > new guide) and they will help you perfectly in positioning your objects in the right places.

you can turn off this magnetic field like that
view  > snap to > guides
& remove the check mark

that's it. i hope you knew something new.
& if you have any questions please don't hesitate to contact me or just leave a comment.

have a good day