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How to validate required fields before executing menu item ("Save As") using cutom Javascript?


Level 1


Sorry, I am new to PDF Development. I tried creating PDF using Acrobat XI Pro. During creation, I have encountered issues in running custom JavaScript. The requirement is to validate all the required fields before saving the PDF. I tried using the following scripts to validate the said required fields. But, it's not working.

Option 1: If the field is null, a message box will appear.

if(this.getfield("textbox") = null){



else {app.execMenuItem("SaveAs");}

Option 2: If the field is required, a message box will appear.

var f = this.getField("textbox");
f.required = true;

if(f = true)

The scripts mentioned above are not working. I wanted to validate the required fields before saving the PDF.

In addition, I tried validating each field using the following script:

f = getField(

if (f.value.length == 0)



    //Optional Message - Comment out the next line to remove

    app.alert("This field is required. Please enter a value.")


When I open the PDF, the script is working. However, when the message box pops out, the "OK" button is not working as expected. The message box is not closing. I tried opening the form in a site in different Java versions (like 7-11 and 7-67). It's working in version 7-67. I tried upgrading the Java version from 7-11 to 7-67. Still, it doesn't work.

I would appreciate your feedback on this matter.

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