1. Adding a new page in Javascript gives "page are out of range" message 2. running preflight in Js

Issue 1

I want to add some new pages to my existing document using Javascript. Here is my code:

addNewPage = [
  [30, 687.8389587],
  [28, 78.81201171875],
  [24, 156.84698486328125],
  [20, 10.190933227539062],
  [16, 60.06394958496094],
  [11, 2.958984375],
  [7, 70.81497192382812],
  [3, 278.82696533203125]
]

for (var p = 0; p < addNewPage.length; p++) { 
  var newPageAfter = addNewPage[p][0]
  var newPageHeight = addNewPage[p][1]
  var newPageWidth = 595;
 // this.newPage(newPageAfter, newPageWidth, newPageHeight);
  console.println("newPageAfter = " + newPageAfter + " newPageWidth = " + newPageWidth + " newPageHeight = " + newPageHeight);
}

 This code adds pages successfully. But gives this message:

"Dimensions of this page are out of range. Page content might be truncated."

Then I tried it one by one like the following:

this.newPage(30,595,687.8389587);

this.newPage(28,595,78.81201171875);

All these lines ran successfully without any message.

And I found out that it throws the message at this line:

this.newPage(11,595,2.958984375);

More interestingly, if I run this line multiple times, it only throws the message only at the first instance:

this.newPage(11,595,2.958984375); //throws message
this.newPage(11,595,2.958984375); //no message
this.newPage(11,595,2.958984375); //no message

If I change the height to any other number (2,3,...) it also works without any message. I thought this has something to do with this particular number 2.958984375. But no, I have ran this line in other pdfs without any message.

Can anyone explain this? How can I avoid getting this message?

Is it something to do with my file? I am attaching the file here.

Issue 2

I tried running a preflight profile in Javascript. This profile ran successfully from the Preflight menu removing page objects outside trim area but did nothing when I used this code in Javascript.

var oProfile = Preflight.getProfileByName("1_Remove page objects outside trim area")
    if (oProfile != undefined) {
        var oThermometer = app.thermometer;
        var myPreflightResult = this.preflight(oProfile, false, oThermometer); 
        if (myPreflightResult.numErrors > 0) {
		console.println("Preflight found " + myPreflightResult.numErrors + " Errors.")};
        } else {
            console.println("Preflight found no Errors.");
        }

Is something wrong with the code or it is impossible using Javascript?

I am using Adobe Acrobat Pro DC.