整体思路1.使用pdfjsLib解析 文件2.canvas画出解析文件3.转化url并且打印const page await pdfDocument.getPage(i);const viewport page.getViewport({ scale: 1.32 });const headerHeight 60;const totalCanvas document.createElement(canvas);const ctx totalCanvas.getContext(2d);totalCanvas.width viewport.width;totalCanvas.height viewport.height headerHeight;ctx.fillStyle #f0f0f0;ctx.fillRect(0, 0, totalCanvas.width, 300);ctx.fillStyle #333333;ctx.font 25px Arial;ctx.fillText(customerCode | DUE DATE: dueDate, 170, headerHeight - 20);const qrDataUrl generateQRCodeDataUrl(customerCode, 40, 40);const qrImg new Image();await new Promise((resolve, reject) {qrImg.onload resolve;qrImg.onerror reject;qrImg.src qrDataUrl;});ctx.drawImage(qrImg, totalCanvas.width - 70, 10, 40, 40);const renderContext {canvasContext: ctx,viewport: viewport};ctx.save();ctx.translate(0, headerHeight);await page.render(renderContext).promise;ctx.restore();const imageDataUrl totalCanvas.toDataURL(image/png);图片地址出来后 就随便打印了 还是蛮清晰的 over
