如何在Chrome的PDF查看器中以其名称显示JavaScript File对象？ [英] How to display a javascript File object in Chrome's PDF viewer with its name?

问题描述

我有一份PDF格式的文件，其格式为

解决方案

您可以设置由 jsPDF 与 setProperties 方法：

  var doc = new jsPDF（）; 
 doc.setProperties（{
 title：这是我的标题
}）; 
 ... 
  

该标题将显示在Chrome的PDF查看器中。您可以在实时演示页面中测试它。

I've got a PDF file in the form of a Blob object (generated with jsPDF), that I want to display in an <iframe> element.

I can do that easily this way:

iframe.src = URL.createObjectURL( blob )

The PDF is rendered correctly but I get an esoteric string in place of its name (see image below of Chrome's PDF viewer).

So I tried to convert the Blob to a File object in order to give it a human-readable name.

var file = new File( [blob], 'a_name.pdf', { type: 'application/pdf' } )
iframe.src = URL.createObjectURL( file )

It works with Firefox: the name is kept when saving the file from the header's PDF viewer. Unfortunately it is dropped in Chrome and replaced with a random file name before being loaded in the PDF viewer.

Do you know if it is possible to display the PDF File object in the <iframe> with its file name?

解决方案

You can set the title of the PDF generated by jsPDF with the setProperties method:

var doc = new jsPDF();
doc.setProperties({
    title: "This is my title"
});
...

That title will be displayed in the PDF viewer in Chrome. You can test it in the Live Demo page.

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