JS Print pdf文件

Question

I try to print pdf file in javaScript. I get the file's url from the server.

var iframe = document.createElement('iframe');
                document.body.appendChild(iframe);

                iframe.style.display = 'none';
                iframe.src = urlBaseImage + 'Report//' + result;
                iframe.focus();
                iframe.contentWindow.print();

But he give me empty page, I checked the url and it is really correct. What Can I do? Thanks!

Answer 1

You can use this library, Print.js: http://printjs.crabbly.com/

It is very easy to print PDF files with it.

Just pass the PDF file url to the printJS() function;

For example:

printJS('docs/my_pdf_file.pdf');

Answer 2

 function printDisclosureDocument() {
  var doc = document.getElementById('pdfDocument');
 if (doc == 'undefined' || doc == null) {
    var pdfbox = document.createElement('embed');
    pdfbox.type = 'application/pdf';
    pdfbox.src = 'ShowPDF.aspx?refid=' + $('#MainContent_hdnRefId').val();
    pdfbox.width = '1';
    pdfbox.height = '1';
    pdfbox.id = 'pdfDocument';
    document.body.appendChild(pdfbox);
 }

if (doc != null && doc != 'undefined') {
    //Wait until PDF is ready to print    
    if (typeof doc.print === 'undefined') {
      setTimeout(function () { printDisclosureDocument(); }, 500);
    } else {
      doc.print();
    }
 }
 else {
         setTimeout(function () { printDisclosureDocument(); }, 500);
     }
 }