Converting rdl to pdf on button Click

Hi friends,

I am trying to convert oob report to pdf on button click.

This is the code from our dynamics community threads only, report is not downloading. can anyone please help me to solve this issue.

Thanks,

Bharath

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function runReportToPrint() {
debugger;
var params = getReportingSession();

var newPth = Xrm.Page.context.getClientUrl() + "/Reserved.ReportViewerWebControl.axd?ReportSession=" + params[0] + "&Culture=1033&CultureOverrides=True&UICulture=1033&UICultureOverrides=True&ReportStack=1&ControlID=" + params[1] + "&OpType=Export&FileName=public&ContentDisposition=OnlyHtmlInline&Format=PDF";
encodePdf(params);
window.open(newPth, "_self");
}

function getReportingSession() {

// var selectedIds = Xrm.Page.data.entity.getId();
var reportName = "Account Overview";
alert(reportName);
var reportGuid = "2B2A692E-7D04-E711-80E6-00155DB8652A";
alert(reportGuid);//OR Report GUID - Replace with your report GUID

var pth = Xrm.Page.context.getClientUrl() + "/CRMReports/rsviewer/ReportViewer.aspx";

var retrieveEntityReq = new XMLHttpRequest();

retrieveEntityReq.open("POST", pth, false);

retrieveEntityReq.setRequestHeader("Accept", "*/*");

retrieveEntityReq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

retrieveEntityReq.send("id=%7B" + reportGuid + "%7D&uniquename=" + Xrm.Page.context.getOrgUniqueName() + "&iscustomreport=true&reportnameonsrs=&reportName=" + reportName);

var x = retrieveEntityReq.responseText.lastIndexOf("ReportSession=");
var y = retrieveEntityReq.responseText.lastIndexOf("ControlID=");

var ret = new Array();

ret[0] = retrieveEntityReq.responseText.substr(x + 14, 24);
ret[1] = retrieveEntityReq.responseText.substr(x + 10, 32);

return ret;

}

function encodePdf(responseSession) {

var retrieveEntityReq = new XMLHttpRequest();
var pth = Xrm.Page.context.getClientUrl() + "/Reserved.ReportViewerWebControl.axd?ReportSession=" + responseSession[0] + "&Culture=1033&CultureOverrides=True&UICulture=1033&UICultureOverrides=True&ReportStack=1&ControlID=" + responseSession[1] + "&OpType=Export&FileName=Public&ContentDisposition=OnlyHtmlInline&Format=PDF";
retrieveEntityReq.open("GET", pth, true);
retrieveEntityReq.setRequestHeader("Accept", "*/*");
retrieveEntityReq.responseType = "arraybuffer";
retrieveEntityReq.onreadystatechange = function () {

if (retrieveEntityReq.readyState == 4 && retrieveEntityReq.status == 200) {
var binary = "";
var bytes = new Uint8Array(this.response);

for (var i = 0; i < bytes.byteLength; i++) {
binary += String.fromCharCode(bytes[i]);
}
var bdy = btoa(binary);

alert(bdy);

}
};

retrieveEntityReq.send();
}