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Old 04-29-2012, 11:40 AM   #1
FMP
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Posts: 28
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Join Date: Feb 2012
Device: m92
Colored scribbles in LaTeX-generated pdf files with hyperlinks.

This is a curiosity I wanted to share in case it could be of any use.

I commonly scribble on pdf files generated with LaTeX. In doing so, I noticed that the scribbles on a page with a hyperlink happen to be merged into pdf with the color of the hyperlink.

For instance, running pdflatex on the file:

%%%%%%%%%%
\documentclass{article}
\usepackage{hyperref}

\begin{document}

\section{Black}

\newpage
\section{Green\protect\cite{Wikipedia}}

\newpage
\section{Red\protect\footnote{Footnote.}}

\newpage
\begin{thebibliography}{0}
\bibitem{Wikipedia}
\href{http://en.wikipedia.org/}{Blue}.
\end{thebibliography}

\end{document}
%%%%%%%%%%

generates four pages, respectively with no hyperlink and a green, red, and light blue hyperlinks. Scribbling on this pdf and merging will result on a pdf with scribbles in black, green, read, and light blue. A pdf file so generated with this effect is attached.
Attached Files
File Type: pdf color_2012-4-29_15-2-18_xournal-printout.pdf (50.0 KB, 104 views)
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Old 04-29-2012, 11:53 AM   #2
kodomo
M92 info archivist
kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.
 
Posts: 235
Karma: 1398
Join Date: Jun 2008
Device: IRex Iliad 2nd ed., Onyx Boox M92
Quote:
Originally Posted by FMP View Post
This is a curiosity I wanted to share in case it could be of any use.

I commonly scribble on pdf files generated with LaTeX. In doing so, I noticed that the scribbles on a page with a hyperlink happen to be merged into pdf with the color of the hyperlink.

For instance, running pdflatex on the file:

%%%%%%%%%%
\documentclass{article}
\usepackage{hyperref}

\begin{document}

\section{Black}

\newpage
\section{Green\protect\cite{Wikipedia}}

\newpage
\section{Red\protect\footnote{Footnote.}}

\newpage
\begin{thebibliography}{0}
\bibitem{Wikipedia}
\href{http://en.wikipedia.org/}{Blue}.
\end{thebibliography}

\end{document}
%%%%%%%%%%

generates four pages, respectively with no hyperlink and a green, red, and light blue hyperlinks. Scribbling on this pdf and merging will result on a pdf with scribbles in black, green, read, and light blue. A pdf file so generated with this effect is attached.
I noticed that, too - actually, that's what got me started looking at the topic (see my other post in the devel thread - I'm fiddling with pdf_tools to get multiple colors - I know where to start, but am currently stalled by work :P)...
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Old 05-17-2012, 12:38 PM   #3
kodomo
M92 info archivist
kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.kodomo is no ebook tyro.
 
Posts: 235
Karma: 1398
Join Date: Jun 2008
Device: IRex Iliad 2nd ed., Onyx Boox M92
Quote:
Originally Posted by FMP View Post
This is a curiosity I wanted to share in case it could be of any use.

I commonly scribble on pdf files generated with LaTeX. In doing so, I noticed that the scribbles on a page with a hyperlink happen to be merged into pdf with the color of the hyperlink.

For instance, running pdflatex on the file:

%%%%%%%%%%
\documentclass{article}
\usepackage{hyperref}

\begin{document}

\section{Black}

\newpage
\section{Green\protect\cite{Wikipedia}}

\newpage
\section{Red\protect\footnote{Footnote.}}

\newpage
\begin{thebibliography}{0}
\bibitem{Wikipedia}
\href{http://en.wikipedia.org/}{Blue}.
\end{thebibliography}

\end{document}
%%%%%%%%%%

generates four pages, respectively with no hyperlink and a green, red, and light blue hyperlinks. Scribbling on this pdf and merging will result on a pdf with scribbles in black, green, read, and light blue. A pdf file so generated with this effect is attached.
I didn't bother to find the cause of this erratic behaviour (so it might still be present in the hack), but since you seemed to look out for colors... so you might be interested in the color_pdf_tools hack (check software wiki).

Cheers!
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Old 05-18-2012, 08:06 AM   #4
FMP
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FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!FMP , Klaatu Barada Niktu!
 
Posts: 28
Karma: 5106
Join Date: Feb 2012
Device: m92
Quote:
Originally Posted by kodomo View Post
I didn't bother to find the cause of this erratic behaviour (so it might still be present in the hack), but since you seemed to look out for colors... so you might be interested in the color_pdf_tools hack (check software wiki).
Thanks.
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