Please find update under https://community.accelrys.com/thread/7075

Name: PDFMerger
Author: Pedro Gomez Fabre
Version: 1.0
Created: 08/2007

Purpose: Merge PDF files into a single PDF document.

Requirements: Pipeline Pilot 6.1.1, GhostScript (Windows or Linux)
O/S: PP Server Windows and Linux
PP client Windows
Limitations: Check for the integrity of the final Document. Some advanced slides options can be missing.

Keywords: PDF, merge, collate
Contents:
Components:
PDF merger.xml (merger component)
Protocols:
PDF merger (Test Protocol).xml
PDF merger (Example).xml

Installation: This component requires the use of a global variable named GSlocation. Is recommended to set this variable using the admin portal (consult your admin on that). Check the first component on protocol to follow the configuration example. As alternative you can set the location of the application on your system creating a global @GSlocation (See Test protocol).

Component: Drag and drop the components on the component area.
Protocol: Check example and modify the path accordingly to your Ghosth installation.
If the @GSlocation has been set on the server, you can avoid the first pipeline (PilotScript element). If not check for appropriate location.

Linux: look for gs 'Which gs' maybe it's already installed on your system.Point to that location
Windows: download GhostScript (http://pages.cs.wisc.edu/~ghost/) and point to the file 'gswin32c.exe'

On my windows system Ghostscript was installed at
'C:\Program Files\gs\gs8.60\bin\gswin32c.exe'
On linux at
'/usr/bin/gs'

as you can see from the Test protocol.

Once this is set you don't need to care about the location of Ghostscript or install it in your computer.