libpdflib804-2-gfortran software package provides [Physics] Comprehensive library of parton density functions, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libpdflib804-2-gfortran
libpdflib804-2-gfortran is installed in your system.
Make ensure the libpdflib804-2-gfortran package were installed using the commands given below,
$ sudo dpkg-query -l | grep libpdflib804-2-gfortran *
You will get with libpdflib804-2-gfortran package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Libraries |
| Package | libpdflib804-2-gfortran |
| Version | 20061220+dfsg3-3 |
| Description | [Physics] Comprehensive library of parton density functions |
| Sub Section | libs |