How to install qpdfview 0.4.14?

I am not sure if this is too late but you can simply add and install the qpdfview PPA with:

sudo add-apt-repository ppa:b-eltzner/qpdfview
sudo apt-get update
sudo apt-get install qpdfview

As you can see here, qpdfview 0.4.14 is part of the "universe" repository from 15.10 onwards. So, as long as you have that repository enabled, you can simply install with

sudo apt-get install qpdfview

Also, you can always check the version available for your distro using apt-cache policy <package_name>. You will get something like this:

lucho@lucho-HP:~$ apt-cache policy qpdfview
qpdfview:
  Installed: (none)
  Candidate: 0.4.14-1
  Version table:
 *** 0.4.14-1 500
        500 mirror://mirrors.ubuntu.com/mirrors.txt xenial/universe amd64 Packages
        100 /var/lib/dpkg/status

The latest versions of qpdfview (0.4.18beta1 at this time) are always available at the developer's PPA. These daily are builds, and should not be considered stable, but I've had no issues so far:

sudo add-apt-repository ppa:adamreichold/qpdfview-dailydeb
sudo apt update

Just make sure you have removed any previous versions using

sudo apt remove qpfview

before installing using the usual sudo apt install qpfview