diffpdf software package provides compare two PDF files textually or visually, you can install in your Ubuntu 16.10 (Yakkety Yak) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install diffpdf
diffpdf is installed in your system.
Make ensure the diffpdf package were installed using the commands given below,
$ sudo dpkg-query -l | grep diffpdf *
You will get with diffpdf package name, version, architecture and description in a table
| Distro | Ubuntu 16 10 yakkety yak |
| Section | Utilities |
| Package | diffpdf |
| Version | 2.1.3-1.1 |
| Description | compare two PDF files textually or visually |
| Sub Section | Utils |