Requesting help with using "doc.newPage" ...

Question

Hi,
I am using Acrobat Professional 8.1.2 and I would like to add a blank page to an open document. Is there anything wrong with the following Javascript code:
// Insert Blank Page
app.addMenuItem({ cName: "Insert Blank Page", cParent: "Tools", cExec: "BlankPage()"});
function BlankPage()
doc.newPage();
Once it has been invoked, I receive the message:
An Internal error ocurred.
Thanks in advance for your help.
-Greg

Answer 1

The newPage document method needs to be in a trusted function. Also, the doc object as you've currently coded it will be undefined. Your cExec code should be:
cExec: "BlankPage(this);"
and the function could look something like:
var BlankPage = app.trustedFunction(function (doc) {
    app.beginPriv();
    doc.newPage();
    app.endPriv();
assuming this code is placed in a folder-level JavaScript file. This isn't necessarily the best way to code this, so I'd suggest reading up on trusted functions and trust propagator functions in the Acrobat JavaScript reference for more information.
George