Fix PDF file properties in Book 2

[jhlegarreta]

As discussed in PR #73, Book 2 PDF file properties seem not to be created as expected; taking one of the latest builds, the PDF properties show:

Title: MultiResImageRegistration1TraceMetric.eps
Author: aghayoor
Subject: gnuplot plot
Keywords: "Registration,Segmentation,Guide"

and the following is expected:

Title: ITK Software Guide
Author: Hans Johnson and Luis Ibáñez and Matthew McCormick and the Insight Software Consortium
Subject: Medical Image Segmentation and Registration Toolkit
Keywords: "Registration,Segmentation,Guide"

[albert-github]

In the file: SoftwareGuide/Art/MultiResImageRegistration1TraceMetric.eps I saw:

SDict begin [
  /Title (MultiResImageRegistration1TraceMetric.eps)
  /Subject (gnuplot plot)
  /Creator (gnuplot 4.6 patchlevel 5)
  /Author (aghayoor)
%  /Producer (gnuplot)
%  /Keywords ()
  /CreationDate (Wed Jul 30 16:37:13 2014)
  /DOCINFO pdfmark
end

So maybe commenting out the relevant items here might help.

I could not find where this file is included though...

Note: There might be also other eps files that have the same behavior but that the one shown is the last one included.

[albert-github]

I did some further investigations and found: https://groups.google.com/g/comp.graphics.apps.gnuplot/c/WTjwj-lbC90 (in comment last but one) here it is suggested to replace:

/SuppressPDFMark false def

by

/SuppressPDFMark true def

[albert-github]

A proposed patch is available as pull request #226

[albert-github]

Code has been integrated in main on GitHub, issue can be closed.