pdf. js 현재 페이지 에서 열기

// An highlighted block
$(function(){
	PDFJS.workerSrc = '../build/pdf.worker.js';//     
	// url pdf   
	PDFJS.getDocument(url).then(function getPdfHelloWorld(pdf) {
		//        
		pdf.getPage(1).then(function getPageHelloWorld(page) {
			var scale = 1.5; //      
			var viewport = page.getViewport(scale);
			var canvas = document.getElementById('canvas'); 
			var context = canvas.getContext('2d');
			canvas.height = viewport.height;
			canvas.width = viewport.width;
			var renderContext = {
				canvasContext: context,
				viewport: viewport
			};
			page.render(renderContext);
		});
	});

})

<canvas id="canvas"></canvas>

	//  
	 $(function(){
        var url ='../img/2.pdf'; //    
        PDFJS.workerSrc = '../build/pdf.worker.js';//     
        PDFJS.getDocument(url).then(function getPdfHelloWorld(pdf) {
            for(var i=0; i<=pdf.numPages; i++){ //       <=
                pdf.getPage(i).then(function getPageHelloWorld(page) {
                    var scale = 1.8; //    
                    var viewport = page.getViewport(scale);
                    var canvas = document.createElement('canvas');
                    var context = canvas.getContext('2d');
                    canvas.height = viewport.height;
                    canvas.width = viewport.width;
                    $("#container").append(canvas);
                    page.render({canvasContext: context, viewport: viewport});
                 })
            }
        });
    })