everybody. I have a question, I use pdf viewer and show pdf file. on my website I showed pdf file. However, if on computer installs IDM, its will auto download file and can't show file. it will automatically download by idm.

I want to change my code which prevent auto I searched a lot and didn't get an answer download, but I don't know. Have you any idea? How can I prevent a PDF file from being downloaded with JavaScript or html?

I am using PDF.js an Thanks a lot!

here's my code.

<a href="web/viewer.html?file=test.pdf">File</a>