Changing layer properties using photoshop scripting.

The first step in a script for Photoshop is to set what units you want to use in your code. There are two types of units to define, the Rulers and Type. The ruler unit specifies the image dimension and the type unit specifies the text size.

Creating a New Photoshop Document If you are new to scripting for Photoshop, please view our Photoshop Scripting Basics tutorial for an introduction to Photoshop scripting and a few exercises about basic JavaScript.

What if we have several opened documents and want to choose only one of them to be closed? Documents are identified by the ordered they were opened in. Open several files inside Photoshop and click on the Window menu. We'll notice that the documents shown on the bottom of the menu are sorted by the....

1. Save the current ruler units preference and change it to one you would like to work with. var oldRulerUnits = preferences.rulerUnits; preferences.rulerUnits = Units.PIXELS; For a better understanding of the above code, please read the Setting the Ruler and Type Units tutorial.

The first thing we need to do is check to see if there is an document. To do this, we'll check to see if the current document has a length. If it doesn't, it obviously means that there are no opened documents and the script will do nothing instead of giving an error.

Editor's Pick in Photoshop Tutorials, November 2005
This series of tutorials will allow you to master the basic Photoshop programming skills, which will ultimately save your time and help you comprehend Photoshop from within.

Variables are used to store value for organizational purposes. For example, if you have the title "My Photos" used several time in a script, you can set that as a variable and every time you want to change the title, you can simply edit the variable instead the the entire script. Lets create a sim.....

Operators are the same thing as arithmetic operators (+, -, *, /) and can be use to create equations in a script. Lets create a simple script using variables and operators.

Now that you know how to create mathematical equations, you need to learn about Conditionals. Conditionals are "if" and "then" statements. The "if" statement simply tests to see if something is true or false. If it is true, the script inside the "then" statement will play. Here's a script t...