Recently in a lobste.rs discussion thread, I wondered how people would react to programmers using PDF as an application platform: use a scripting language to update the content of the PDF file on the fly and in response to user events.  I&#x27;m quite certain that most, if not all, users would shun these applications as they would be slow, unresponsive and ultimately trying to use a technology for static documents to develop dynamic and interactive content (i.e. wrong tool for the job).  I feel that this is exactly what is happening with web applications and projects like Electron.<p>And then a user pointed out that Acrobat Reader can actually do that already [1].<p>[1] <a href="http:&#x2F;&#x2F;www.adobe.com&#x2F;devnet&#x2F;acrobat&#x2F;javascript.html" rel="nofollow">http:&#x2F;&#x2F;www.adobe.com&#x2F;devnet&#x2F;acrobat&#x2F;javascript.html</a>