terminal command not working in c# progra

Question

I call a console program in a c# application but it's not working.

I'm trying to call pdf toolkit VIA c#.

When I run pdftk using command prompt, the output file (new.pdf) is created. When c# calls pdftk it doesn't error, but it doesn't work.

Am I calling it wrong in C# or something?

C# Call: (Not working)

System.Diagnostics.Process.Start(pdfTKPath, pdftkArgs);
Console.Write(pdfTKPath + pdftkArgs);
Console.ReadLine();

// Here's the string that the console outputs.
// pdftk.exe C:\Users\name\Desktop\assignment1\assignment1\data\temp\test_cropped.pdf stamp C:\Users\name\Desktop\assignment1\assignment1\data\temp\test_footer.pdf output C:\Users\name\Desktop\assignment1\assignment1\data\temp\new.pdf

CMD Prompt Call: (Works Fine)

C:\Users\name>pdftk.exe c:\Users\name\Desktop\assignment1\assignment1\data\temp\test_cropped.pdf stamp c:\Users\name\Desktop\assignment1\assignment1\data\temp\test_footer.pdf output c:\Users\name\Desktop\assignment1\assignment1\data\temp\new.pdf

C:\Users\name\Desktop\assignment1\assignment1\bin\Debug – Frantumn Jun 05 '14 at 14:22 — Frantumn, Jun 05 '14 at 14:22

score 0 · Answer 1 · answered Jun 05 '14 at 14:27

0

C:\Users\name>pdftk.exe

is wrong

Use the following one:

C:\Users\name\pdftk.exe

Also, did you escape

\

symbol? It is required if you are hardcoding path in the app

answered Jun 05 '14 at 14:27

Ivan Surzhenko

149
1
8

The > is only there because it's a copy from a cmd prompt. Yes, all \ are escaped. – Frantumn Jun 05 '14 at 14:28

score 0 · Answer 2 · answered Jun 05 '14 at 14:29

0

Maybe pdftk.exe is not in the path. Try to call the exe specifying it's full path.

answered Jun 05 '14 at 14:29

Caótico fanegas

101
3

Good idea, I added the full path, but no progress. – Frantumn Jun 05 '14 at 14:32

score 0 · Answer 3 · answered Jun 05 '14 at 14:31

0

firstly I would check if aprocess is created and if it has an error

var processo=System.Diagnostics.Process.Start(pdfTKPath, pdftkArgs);
Console.Write("process created: "+processo.ExitCode);

answered Jun 05 '14 at 14:31

pomarc

2,194
3
23
30

I get an exception "Process must exit before requested information can be determined." – Frantumn Jun 05 '14 at 14:34
look here http://msdn.microsoft.com/en-us/library/vstudio/system.diagnostics.process.exitcode – pomarc Jun 05 '14 at 20:53

score 0 · Answer 4 · answered Jun 05 '14 at 15:36

The reason that this wasn't working is that the processing that was happening with the prior method wasn't complete.

The method before this one uses ghost script to create a cropped PDF file. This method was evoked without ghost script completing the work. Therefore this method didn't think the files existed yet (because they didn't). I set this method to wait 2 second before starting and it works fine. This allowed the previous method time to complete.

terminal command not working in c# progra

4 Answers4