Install EPEL YUM Repository
Get EPEL YUM Repository installed on the machine if you don’t already have it. The package you require is in EPEL repository. You can check if the repository is installed using “yum repolist”
You need to install PDFjam using the following YUM command:
yum install pdfjam
The tool to merge PDFs in PDFjam is called “pdfjoin”. It’s usage is pretty simple. Give all the PDF files you want to merge in the arguments like so:
pdfjoin file1.pdf file2.pdf file3.pdf
The merged pdf will automatically be created as file3-joined.pdf. Simple and quick.
Think about doing this using a PDF editor. Command line rocks!