Aligning to a key anchor works very much the same as aligning to a key object except you need 1 less click. I have a very crude shape drawn below as an example. I want to align a few of these anchors to the highest anchor on the left, but I DON”T WANT THE ANCHOR I ALIGN TO TO MOVE AT ALL, which is why I’m using this technique and not simply the align to selection option in the align palette.

Step 1:

Select each anchor individually, and the LAST anchor you select will automatically be your “key anchor.”

Step 2:

First, make sure that “Align to Key Anchor” is active in the Align palette (it should happen automatically when manually selecting points), and then hit the “Vertical Align Center” button.

Step 3:

Done. You’ll notice that the last anchor we selected didn’t move at all. All of the other points wore aligned to match the key anchor’s vertical location. Like I said, this probably won’t be something you use every day, but it is good to know. :)

Illustrator: Align to Key Object [HD] from Jay Hilgert on Vimeo.

Understand this first:

1. If you noticed from the screenshot above, you can access Illustrator’s anchor points from the Transform palette. (or the horizontal quick menu in some of the latest versions of Illy)

2. Using Anchor Points to align objects only works when numeric values (x, y coordinates) are entered into the Transform Palette. (i.e., choosing an anchor point and then using the Align palette will not work.)

Get to Know the Artboard:

Here is an example of a default coordinate system on a 400 X 400px Illustrator artboard. Since you must use the (x, y) coordinate system to enjoy this feature, it’s important to familiarize yourself with, at the very least, where Illustrator puts (0, 0)

Example 1:

In this example (from the Transform palette) I chose the bottom left anchor point to do my alignment. I then entered in the x and y coordinates (0, 0) and I’m instantly able to be 100% sure that my shape is perfectly aligned to the bottom left corner.

You might look at the example above and say to yourself, “You can do that with the Align palette.” In this case you would be correct, but in example 2 below, you’ll see something that the align palette can’t do.

Example 2:

In this example, I chose the center anchor point, and aligned my object to the upper left corner by entering a 0(zero) x value, and 400 y value. Now my circle’s exact center is exactly aligned to the upper left corner. Why is this so special? Well, for one thing, this amount of control is great for making seamless patterns. And seamless patterns are file-size reducers, as well as time savers in most cases.