HOW CAN I BATCH ADD ONLY THE FILENAME TO PDF?

Question

I saw a long thread about adding javascript code to insert date, time and filename. but it is an old thread that i cannot comment on.
So please help me only add the filename to the footer
This is the code that was poseted by Rindhard(sp?) This code adds all three.. I only want to have the filename but everytime I try to rem out a line it doesnt work.. i do not know java script obviously
I want to add the filename in a calibri 12pt font
thanks for any help!
app.addSubMenu({ cName: "Footer",cUser: "Set/Remove Footer", cParent: "File", nPos: 20 });
app.addMenuItem({ cName: "Set Date Time (Filename)", cParent: "Footer", cExec: "SetFooter(1)"});
app.addMenuItem({ cName: " ->  Set Date .... centered", cParent: "Footer", cExec: "SetFooter(2)"});
app.addMenuItem({ cName: " ->  Set Date .... right", cParent: "Footer", cExec: "SetFooter(3)"});
app.addMenuItem({ cName: "Set Page centered", cParent: "Footer", cExec: "SetFooter(4)"});
app.addMenuItem({ cName: " -> Set Page right", cParent: "Footer", cExec: "SetFooter(5)"});
app.addMenuItem({ cName: "Set Both", cParent: "Footer", cExec: "SetFooter(9)"});
app.addMenuItem({ cName: "-------------------------------", cParent: "Footer",cExec: "{}"});
app.addMenuItem({ cName: "Remove Both", cParent: "Footer", cExec: "RemoveFooter(9)"});
app.addMenuItem({ cName: "Remove Date Time (Filename)", cParent: "Footer", cExec: "RemoveFooter(1)"});
app.addMenuItem({ cName: "Remove Page", cParent: "Footer", cExec: "RemoveFooter(4)"});
//Set/remove Footer
function SetFooter(ARG)
var re = /.*\/|\.pdf$/ig;
var FileNM = this.path.replace(re,"")+".pdf";
var Path = this.path;
var AcDate = new Date();
var AcDateFormat = "yyyy/mmm/dd  HH:MM"
var Box2Width = 50
for (var p = 0; p < this.numPages; p++)
  var aRect = this.getPageBox("Crop",p);
  var TotWidth = aRect[2] - aRect[0]
  if (ARG<=3 || ARG==9)
   { var fd = this.addField("xftDate", "text", p, [30,15, TotWidth-30-30,30]);
      fd.value =  util.printd(AcDateFormat, AcDate) + "   (" + FileNM +")";
       fd.textSize=6; fd.readonly = true;
       if (ARG==1){ fd.alignment="left" };
       if (ARG==2){ fd.alignment="center" };
       if (ARG==3){ fd.alignment="right" };
  if (ARG==4 || ARG==5 ||ARG==9)
   {  var bStart=(TotWidth/2)-(Box2Width/2)
       var bEnd=((TotWidth/2)+(Box2Width/2))
       if (ARG==5){var bStart=(TotWidth-Box2Width-30); var bEnd=(TotWidth-30);}
       var fp = this.addField(String("xftPage"+p+1), "text", p, [bStart,30,bEnd,15]);
       fp.value = "Page: " + String(p+1)+ "/" + this.numPages;
       fp.textSize=6;  fp.readonly = true;
       fp.alignment="center";
function RemoveFooter(ARG)
if (ARG<=3 || ARG==9) {var x = this.removeField("xftDate");}
if (ARG==4 || ARG==9)
   {  for (var p = 0; p < this.numPages; p++)
      {var x = this.removeField(String("xftPage"+p+1)); }

Answer 1

Not sure what you mean by "-30 high and -30 from the right". Isn't this supposed to be left-aligned?
Anyway, try this one:
this.addWatermarkFromText({ cText: this.documentFileName.replace(/\.pdf$/i,""), cFont: "Calibri", nFontSize: 12,
    nHorizAlign: app.constants.align.left, nVertAlign: app.constants.align.bottom, nHorizValue: 30 , nVertValue: 30});
If you want to customize it further, look up the addWatermarkFromText method in the reference files. All the parameters are specified there.