Add a rendered event in promise

[scheibapps]

page.getTextContent().then((textContent) => {
var index = _this._showAll ? page.pageIndex : 0;
var canvas = container.querySelectorAll('canvas')[index];
canvas.parentNode.insertBefore(_this.buildSVG(viewport, textContent), canvas);
canvas.style.position = 'absolute';
canvas.style.top = '0';
canvas.style.left = '0';
canvas.style.zIndex = '-1';
this.renderer.emit(true);
});

Something like this so that I can know when the view has rendered.

[VadimDez]

Released in 4.1.0
https://github.com/VadimDez/ng2-pdf-viewer#page-rendered