在画布中将PDF页面呈现为SVG

Question

我试图使用pdfjs渲染PDF。我做得很好，但是现在我希望PDF页面在缩放时也必须清晰。请查看并让我知道如何将PDF页面作为SVG导入以保持清晰度。保持页面清晰的任何其他选择将受到高度赞赏

我的代码

     __PDF_DOC.getPage(page_no).then(function (page) {
        pdfPage = page;
        var canvas1 = document.getElementById('c');

        var scale_required = 1;//__CANVAS.width / page.getViewport(1).width;

        // Get viewport of the page at required scale
        var viewport = page.getViewport(canvas.width / page.getViewport(1.0).width);


        renderContext = {
            canvasContext: canvas.getContext(),//__CANVAS_CTX,
            viewport: viewport,//viewport,

        };

        // Render the page contents in the canvas
        page.render(renderContext).then(function () {

            var bg = canvas1.toDataURL("image/svg",1);

            canvas.setBackgroundImage(bg, canvas.renderAll.bind(canvas));
 canvas.renderAll();
});