通过Javascript将PDF转换为“仅图像”

// 引入pdf.js库
import * as pdfjs from 'pdfjs-dist';
import { getDocument } from 'pdfjs-dist/legacy/build/pdf';

async function convertPdfToImages(pdfUrl) {
  const pdf = await getDocument(pdfUrl).promise;
  const images = [];

  for (let i = 1; i <= pdf.numPages; i++) {
    const page = await pdf.getPage(i);
    const viewport = page.getViewport({ scale: 1.5 });
    const canvas = document.createElement('canvas');
    const context = canvas.getContext('2d');
    canvas.height = viewport.height;
    canvas.width = viewport.width;

    const renderContext = {
      canvasContext: context,
      viewport: viewport,
    };

    await page.render(renderContext).promise;
    const image = canvas.toDataURL('image/png');
    images.push(image);
  }

  return images;
}

// 使用示例
convertPdfToImages('path/to/your/pdf.pdf').then(images => {
  console.log(images); // 输出图像数据URL数组
});