Popup Box JavaScript Edit Font Size and Color

Forum|Forum|9 months ago
April 9, 2025
1 reply
940 views

Hello. I have an On Blur action for a text box that if anyone typs in the number "5012" it prompts a pop-up box that gives a message. I want to be able to change the font size and color. How can this be done. Below is my script:

var fieldValue = this.getField("Text1").value;

if (fieldValue == "5012") {app.alert("***Message to Person***");
}

Correct answer Thom Parker

Can't be done. There are few options for the alert box. Text color and size are not include.

You do have more options with a custom dialog. But the only color options is red or black. And the sizes are on the order of Big, Medium, and small.

Thom Parker

Community Expert

First, put this action in the "Custom Validation" script for the "Text1" field.

Next, modify it to use the field event properties. Like this.

if(event.value = "5012"){
   event.target.textColor = color.blue;
   event.target.textSize = 14;
}
else{
   event.target.textColor = color.black;
   event.target.textSize = 12;
}

Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often

G

gasperg62515419Author

Known Participant

@Thom Parker Sorry, I just realized my question was not asked very good. I want to be able to chage the color and size of the text within the pop-up box.

Thom Parker

Correct answer

Community Expert

Can't be done. There are few options for the alert box. Text color and size are not include.

You do have more options with a custom dialog. But the only color options is red or black. And the sizes are on the order of Big, Medium, and small.

Thom Parker - Software Developer at PDFScriptingUse the Acrobat JavaScript Reference early and often

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