Chrome OS如何打印pdf文件

这段示例代码展示了如何在Chrome OS上使用JavaScript和Google Cloud Print API发送PDF打印任务。实现此操作的前提是已经将打印机添加到Google云打印服务并且已经获取了访问密钥。

//指定打印文件的url
const fileUrl = "https://example.com/document.pdf";

//获取访问密钥
const accessToken = "YOUR_ACCESS_TOKEN";

//创建打印请求
const xhr = new XMLHttpRequest();
xhr.open("POST", "https://www.google.com/cloudprint/submit", true);
xhr.setRequestHeader("Authorization", `Bearer ${accessToken}`);
xhr.setRequestHeader("Content-Type", "application/json");

xhr.onreadystatechange = function() {
  if (xhr.readyState === 4 && xhr.status === 200) {
    console.log(xhr.responseText);
  }
}

//构建打印任务数据
const data = {
  printerid: "YOUR_PRINTER_ID",
  title: "My Document",
  ticket: {
    version: "1.0",
    print: {
      color: {
        type: "STANDARD_MONOCHROME"
      },
      duplex: {
        type: "NO_DUPLEX"
      }
    }
  },
  content: {
    url: fileUrl
  }
};

//发送打印请求
xhr.send(JSON.stringify(data));

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