Edit D:\chineseall_products\bak\digitalLib6\pages\readers\mobile\js\viewer2.js

pdfjsLib.GlobalWorkerOptions.workerSrc =
	serverUrl + '/pages/readers/mobile/js/pdf.worker.js';
var MAX_IMAGE_SIZE = 1024 * 1024;
var CMAP_URL = serverUrl + '/pages/readers/mobile/cmaps/';
var CMAP_PACKED = true;
function loadViewer() {
	debugger;
	var wHeight = $(window).height() - 100;
	var wWidth = $(window).width();
	
	var startPage = page;
	var endPage = page + 10;
	if(endPage > totalPage) 
		endPage = totalPage;
	
	var link = serverUrl + "/fetchPdfPage.action?objectId=" + objectId + "&pageNum=";
	for(var i = startPage; i <= endPage; i++) {
		var url = link + i;
		pdfjsLib.getDocument({
			url: url,
			maxImageSize: MAX_IMAGE_SIZE,
			cMapUrl: CMAP_URL,
			cMapPacked: CMAP_PACKED,
	    }).then(function (pdfDocument) {
	    	pdfDocument.getPage(1).then(function (page) {
	    		var scale = 1.5;
	    		var viewport = page.getViewport(scale);

var canvas = document.createElement("canvas");
	    		document.getElementById("viewer").appendChild(canvas);
	    		var context = canvas.getContext('2d');
	    		canvas.height = viewport.height;
	    		canvas.width = viewport.width;

var renderContext = {
    				canvasContext: context,
    				viewport: viewport
	    		};
	    		page.render(renderContext);
		    });
	    });
	}
}

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