How to make PDF undownloadable using pdf.js

Question

I found the pdf.js project, which is very useful. However, I am unable to figure out how to remove the \"Download\" option.

Answer 1

Modify the source. Line 85 of web/viewer.html.

https://github.com/andreasgal/pdf.js/blob/master/web/viewer.html#L85

Just remove the button.

  
    
    Download
  

This won't completely stop experienced and eager users from downloading it. You can never stop that. But this is enough to raise the bar enough for the curious.