javascriptpdfiframepdf.js

Prevent PDF auto download by idm using pdf.js

I'm using PDF.Js to embed PDF file for preview, and I removed the script of download and open files from the viewer.js , but when I test the page and PDF file try to show, the Internet Download Manager download it and abort the preview .. after search I found that using object instead of iframe may solve the problem, but it didn't work the pdf viewer appeared white, what can I do to prevent auto download ? or using another way (Plugin) to show PDF file content.

<iframe 
  class="pdf" 
  webkitallowfullscreen="" 
  mozallowfullscreen="" 
  allowfullscreen="" 
  frameborder="no" 
  width="'.$width.'" 
  height="'.$height.'" 
  src="'.$baseurl.'/assets/pdf/web/viewer.html?file='.urlencode($pdf_url).'" 
  data-src="'.$pdf_url.'">
  '.$pdf_url.'
</iframe>

enter image description here

Solution

  • This is not something related to developing issue , this is something related to user specific environement.

    The Issue :

    Using IDM ,any URL that ends with a media extension (e.g *.JPG , *.PNG , *.MP4 , *.WMV , *.PDF ..etc ) will be downloaded automatically , However on the other hand if the user doesnt have IDM installed , the file will be viewed immediately in browser window.

    Possible Solutions :

    1. Remove PDF extension Handler from IDM , to prevent auto download, and i think the image explains it very well.

    IDM prevent file types from being handled

    1. Modify response header for your PDF link to force your browser to view pdf inside its view , please consider that each browser may handle the response differently , more details about this method can be found here.

    Final Note:

    As a developer you shouldnt handle each user specific environment , we suppose that when user installs a specific app to handle generic files , then it is his/her role to handle that application , and not the developer role , cause if you follow this algorithm you jump inside infinite loop handling different users specific setup.