Add UserID to Printed PDF file

Question

I have javascript that prints some text and a date stamp on each page of a pdf file. Now the Management wants this information to include the persons id that is logged onto the computer from which the pdf file was printed.

Answer 1

As documented in Adobe's Acrobat JavaScripting Manual, there are security restrictions with respect to the "identity" object. Those restrictions prevent one from directly accessing the "identity" object from a form field. You can access the properties from a folder level JavaScript. The following script when placed in Acrobat's application JavaScript folder will create and initialize application level variables that be accessed by any PDF opened by Acrobat:
// Folder level script to create an application level variables for the "identity" objects properties
var Identity = new Array();
Identity.Corporation = identity.corporation;
Identity.Email = identity.email;
Identity.LoginName = identity.loginName;
Identity.Name = identity.name;
// or
var Identity = new Array();
for (i in identity)
Identity.i = identity.i;
One can then add the following document level or field level javaScript to initialize fields within the PDF to the value of the application level variables:
this.getField("loginName").value = Identity.LoginName;
this.getField("name").value = Identity.Name;
this.getField("by").value = "By: ";
this.getField("by").value += Identity.Name;
With version 7.0 or above, you can use a trusted function located as a document level script to retrieve the information:
trustedIdentity = app.trustedFunction( function (sProperty) {
var iProperty = "";
app.beginPriv(); // explicitly raise privilege
iProperty = identity[sProperty];
app.endPriv();
return iProperty;
One can then add the following document level or field level javaScript to initialize fields within the PDF to the value of the application level variables:
this.getField("loginName").value = trustedIdentity("loginName");
this.getField("name").value = trustedIdentity("name");
this.getField("by").value = "By: ";
this.getField("by").value += trustedIdentity("name");