How to open and display a PDF file using Qt/C++?

Question

I am trying to open and read a PDF file using Qt, but there is no specific way to do that.

Answer 1

I know the subject is a bit old, but... I found a really simple way to render PDFs in Qt via QtWebKit using pdf.js (http://mozilla.github.com/pdf.js/).

Here is my realization of the idea for Qt5 and the WebEngine: https://github.com/Archie3d/qpdf