在下载使用Chrome PDF查看器打开的PDF时设置默认文件名

问题描述

我的角度应用程序具有一个可呈现PDF的iframe:

My angular app has an iframe that renders a PDF:

<iframe ng-src="{{PCtrl.docSrc}}" type="application/pdf" ...></iframe>

docSrc是作为BASE64编码的字符串生成的，类似于:

docSrc is generated as a BASE64 encoded string, something like:

Chrome可以很好地呈现嵌入式PDF.单击下载即可下载PDF，然后将向用户显示另存为"对话框. Chrome PDF查看器提供的默认文件名为"download.pdf"，该如何更改?

Chrome renders the embedded PDF just fine. The PDF can be downloaded clicking on download, and the user will be presented with a "save as" dialog. The default filename given by the Chrome PDF viewer is "download.pdf", how do I change it?

推荐答案

window.onload = () => {
  let blob = new Blob(["file"], {
    type: "text/plain"
  });
  let url = URL.createObjectURL(blob);
  let a = document.createElement("a");
  a.href = url;
  a.download = "file.txt";
  document.body.appendChild(a);
  console.log(url);
  a.click();
}

也许这会对您有所帮助

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