how to create 2 pdf files at the same time with ghostscript?

Question

How can I create 2 pdf files at the same time using GhostScript?

this is my code:

string gsPath = @"C:\Program Files (x86)\gs\gs9.26\bin\gswin32.exe";

                List gsArgsList = new List();
                gsArgsList.Add(" -dPDFA=2");
                gsArgsList.Add(" -dBATCH");
                gsArgsList.Add(" -dNOPAUSE");                
                gsArgsList.Add(" -sProcessColorModel=DeviceCMYK");
                gsArgsList.Add(" -sDEVICE=pdfwrite");
                gsArgsList.Add(" -dPDFACompatibilityPolicy=1");
                gsArgsList.Add(" -sOutputFile=" + nuevo);
                gsArgsList.Add(" " + rutaPdfNormal); 

                var gsArgs = String.Join(null, gsArgsList);

                string gs = gsPath + gsArgs;
                System.Diagnostics.Process.Start(gsPath, gsArgs);

You could create two threads (using Tasks) which are both generating PDFs — ADyson
P.S. To clarify, by "at once" do you mean "in parallel, simultaneously", or just "one after the other without issuing more commands"? — ADyson

KenS KenS · Accepted Answer · 2020-08-11T07:05:33

You cannot create two PDF files simultaneously in a single instance of Ghostscript. The pdfwrite device (which writes the PDF file) only writes to a single file.

I also cannot see the point in writing two files at the same time; perhaps if you explained what you were trying to achieve it might be possible to advise further.

The example you linked to above isn't writing two PDF files simultaneously. It starts by writing to the output file 'tiger.pdf' running the input file 'tiger.eps'. Then it switches to the output file 'colorcir.pdf' and runs the file 'colorcir.ps'. That's not simultaneous, it's sequential; it's exactly the same as running Ghostscript twice with different command lines.

how to create 2 pdf files at the same time with ghostscript?

1 Answers