print.js

var page = new WebPage();

page.paperSize = {
    format: "A4",
    orientation: "portrait",
    margin: {left: "1cm", right: "1cm", top: "1cm", bottom: "1cm"}
};

page.viewportSize = {
    width: 1920,
    height: 1024
};

page.zoomFactor = 1;

var cookieCreated = {
    'name'     : '$LoopBackSDK$created',   /* required property */
    'value'    : '2017-05-24T13:15:51.787Z',  /* required property */
    'domain'   : 'localhost',
    'path'     : '/',                /* required property */
    'expires'  : 'Session'   /* <-- expires in 1 hour */
};
var cookieId = {
    'name'     : '$LoopBackSDK$id',   /* required property */
    'value'    : 'HR5sb6fEYppjHEGhuinPtW3cJG25FX9iGv9xqKch4qHC0YPKt5rj8HrW2ClcciIt',  /* required property */
    'domain'   : 'localhost',
    'path'     : '/',                /* required property */
    'expires'  : 'Session'   /* <-- expires in 1 hour */
};

var cookieIssuedAt = {
    'name'     : '$LoopBackSDK$issuedAt',   /* required property */
    'value'    : 'null',  /* required property */
    'domain'   : 'localhost',
    'path'     : '/',                /* required property */
    'expires'  : 'Session'   /* <-- expires in 1 hour */
};

var cookieRememberMe = {
    'name'     : '$LoopBackSDK$rememberMe',   /* required property */
    'value'    : 'true',  /* required property */
    'domain'   : 'localhost',
    'path'     : '/',                /* required property */
    'expires'  : 'Session'   /* <-- expires in 1 hour */
};

var cookieTTL = {
    'name'     : '$LoopBackSDK$ttl',   /* required property */
    'value'    : '14400',  /* required property */
    'domain'   : 'localhost',
    'path'     : '/',                /* required property */
    'expires'  : 'Session'   /* <-- expires in 1 hour */
};

var cookieUserId = {
    'name'     : '$LoopBackSDK$userId',   /* required property */
    'value'    : '58ece0e1c0751126bbd2f959',  /* required property */
    'domain'   : 'localhost',
    'path'     : '/',                /* required property */
    'expires'  : 'Session'   /* <-- expires in 1 hour */
};

var cookieUser = {
    'name'     : '$LoopBackSDK$user',   /* required property */
    'value'    : '{"firstName":"Anthony","lastName":"Stark","realm":"global","username":"ironman@civil.war","email":"ironman@civil.war","emailVerified":false,"id":"58ece0e1c0751126bbd2f959","companyId":"EXE"}',  /* required property */
    'domain'   : 'localhost',
    'path'     : '/',                /* required property */
    'expires'  : 'Session'   /* <-- expires in 1 hour */
};


page.addCookie(cookieCreated);
page.addCookie(cookieId);
page.addCookie(cookieIssuedAt);
page.addCookie(cookieTTL);
page.addCookie(cookieUser);
page.addCookie(cookieUserId);
page.addCookie(cookieRememberMe);

page.open('http://localhost:8081', function (status) {
    WaitTenSecsAndPrintPdf();
});

function WaitTenSecsAndPrintPdf() {
    setTimeout(function () {
        page.render('output.pdf');
        phantom.exit();
    }, 10000);
}