在node.js中创建/修改Exif

const fs = require('fs');
const ExifImage = require('exif').ExifImage;

// 读取图像的Exif信息
function readExif(imagePath) {
  try {
    new ExifImage({ image: imagePath }, function (error, exifData) {
      if (error) {
        console.log('Error: ' + error.message);
      } else {
        console.log('Exif数据: ' + JSON.stringify(exifData));
      }
    });
  } catch (error) {
    console.log('Error: ' + error.message);
  }
}

// 创建/修改图像的Exif信息
function createOrUpdateExif(imagePath, exifData) {
  try {
    new ExifImage({ image: imagePath }, function (error, exifData) {
      if (error) {
        console.log('Error: ' + error.message);
      } else {
        exifData.image.Software = 'Node.js Exif Library';
        exifData.exif.UserComment = 'This image was modified using Node.js';

        // 保存修改后的Exif信息
        fs.writeFileSync(imagePath, ExifImage(buffer, exifData));
        console.log('Exif信息已成功创建/修改');
      }
    });
  } catch (error) {
    console.log('Error: ' + error.message);
  }
}

// 示例用法
const imagePath = 'path/to/image.jpg';

// 读取图像的Exif信息
readExif(imagePath);

// 创建/修改图像的Exif信息
const exifData = {
  image: {
    Software: 'Node.js Exif Library',
  },
  exif: {
    UserComment: 'This image was modified using Node.js',
  },
};
createOrUpdateExif(imagePath, exifData);