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How to change a PDF file to an image using react?

asked 2021-05-30 11:00:00 +0000

woof gravatar image

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answered 2023-01-19 22:00:00 +0000

devzero gravatar image

There are various ways to convert a PDF file to an image using React, but here is one approach using the PDF.js library:

  1. Install PDF.js:
npm install pdfjs-dist
  1. Import PDF.js into your React component:
import PDFJS from 'pdfjs-dist';
  1. Create a function to convert the PDF file to an image:
const convertToImage = (pdfFile) => {
  PDFJS.getDocument(pdfFile).promise.then((pdf) => {
    const canvas = document.createElement('canvas');
    const context = canvas.getContext('2d');
    const pageNumber = 1;
    pdf.getPage(pageNumber).then((page) => {
      const viewport = page.getViewport({ scale: 1 });
      canvas.width = viewport.width;
      canvas.height = viewport.height;
      const renderContext = {
        canvasContext: context,
        viewport: viewport,
      };
      page.render(renderContext).promise.then(() => {
        const imageDataURL = canvas.toDataURL();
        // Use imageDataURL as the image source or save it to a file
      });
    });
  });
};
  1. Call the function with the PDF file:
const pdfFile = '/path/to/pdf/file.pdf';
convertToImage(pdfFile);

Note: This code only converts the first page of the PDF file. To convert multiple pages, you would need to loop through all the pages and combine the images into a single file.

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Asked: 2021-05-30 11:00:00 +0000

Seen: 9 times

Last updated: Jan 19 '23