使用 javascript 静默打印 PDF 文件

Question

The thing I want to build is that by clicking a button I want to trigger the direct print of a PDF file, but without opening or viewing it.

I have PDF as blob file returned from fetch API.

I tried a lot of examples but don't know exactly how to do it

Some examples tried:

 // In my case, I had only blobData from PDF, but you can ignore this and set fileURL directly if it is not yours. const file = new Blob([blobData], { type: 'application/pdf' }); const fileURL = window.URL.createObjectURL(file); // As the URL is dynamic, we must set src here, but if it's not, just leave it direct on the HTML. // Also, be careful with React literals. If you do this in a <iframe> defined in JSX, it won't work // as React will keep src property undefined. window.frames["my-frame"].src = fileURL; // Then print: window.frames["my-frame"].print();

 <iframe name="my-frame" id="my-frame" title="my-frame" style="display: none"></iframe>

Also tried library, Print.js: http://printjs.crabbly.com/ .

Is there way to print the pdf without visually opening it to the user? We should support only Chrome browser.

Can someone provide example how to do it in React, Redux application?

Answer 1

try this print-js and this is npm package

install npm package

npm install print-js --save

Add following code

import print from "print-js";

const fileURL = "someurl.com/document.pdf"; 

const handlePrint = (e) => {

    e.preventDefault();
    print(fileURL);

};

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