ghostscriptsharp | A C # wrapper for the Ghostscript library | Wrapper library

Background: Trying to use GhostScript to convert PCL to Tiff. I am getting this error when trying to convert PCL to Tiff in a c# winforms application.

I am using Matthew's sample from https://github.com/mephraim/ghostscriptsharp. This a cool wrapper that gives me access to the GS API. But getting this error for some reason result is < 0: Do I need to install GS on my computer? The sample already came with gsdll32.dll and gsdll64.dll. I am trying to convert PCLToTiff. The sample has gsdll64 and does not include gpcl6dll6.dll. Could this be the problem? Does gsdll64 encompass everything including PCL?

Here are the args.

I also tried it without the wrapper just by calling the executable. No luck yet. I have the executable gs9533w32.exe at C:\Users\tom\Desktop\GhostLib\gs9533w32.exe. I also have newForm.PCl in the bin Debug folder of the application. I also tried using gpcl6win64.exe

Next trial: Next question: If I were to buy a license for GhostPCL and integrate it as a part of the solution we provide, how would the install work? Is it as simple as putting the exe and DLL in a folder and just calling it from there or is there some installation involved?