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+% \iffalse meta-comment
+%
+% Copyright (C) 2001, 2006 by Heiko Oberdiek <oberdiek@uni-freiburg.de>
+%
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either
+% version 1.3 of this license or (at your option) any later
+% version. The latest version of this license is in
+% http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of
+% LaTeX version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status "maintained".
+%
+% This Current Maintainer of this work is Heiko Oberdiek.
+%
+% This work consists of the main source file pdfcrypt.dtx
+% and the derived files
+% pdfcrypt.sty, pdfcrypt.pdf, pdfcrypt.ins, pdfcrypt.drv.
+%
+% Distribution:
+% CTAN:macros/latex/contrib/oberdiek/pdfcrypt.dtx
+% CTAN:macros/latex/contrib/oberdiek/pdfcrypt.pdf
+%
+% Unpacking:
+% (a) If pdfcrypt.ins is present:
+% tex pdfcrypt.ins
+% (b) Without pdfcrypt.ins:
+% tex pdfcrypt.dtx
+% (c) If you insist on using LaTeX
+% latex \let\install=y\input{pdfcrypt.dtx}
+% (quote the arguments according to the demands of your shell)
+%
+% Documentation:
+% (a) If pdfcrypt.drv is present:
+% latex pdfcrypt.drv
+% (b) Without pdfcrypt.drv:
+% latex pdfcrypt.dtx; ...
+% The class ltxdoc loads the configuration file ltxdoc.cfg
+% if available. Here you can specify further options, e.g.
+% use A4 as paper format:
+% \PassOptionsToClass{a4paper}{article}
+%
+% Programm calls to get the documentation (example):
+% pdflatex pdfcrypt.dtx
+% makeindex -s gind.ist pdfcrypt.idx
+% pdflatex pdfcrypt.dtx
+% makeindex -s gind.ist pdfcrypt.idx
+% pdflatex pdfcrypt.dtx
+%
+% Installation:
+% TDS:tex/generic/oberdiek/pdfcrypt.sty
+% TDS:doc/latex/oberdiek/pdfcrypt.pdf
+% TDS:source/latex/oberdiek/pdfcrypt.dtx
+%
+%<*ignore>
+\begingroup
+ \def\x{LaTeX2e}
+\expandafter\endgroup
+\ifcase 0\ifx\install y1\fi\expandafter
+ \ifx\csname processbatchFile\endcsname\relax\else1\fi
+ \ifx\fmtname\x\else 1\fi\relax
+\else\csname fi\endcsname
+%</ignore>
+%<*install>
+\input docstrip.tex
+\Msg{************************************************************************}
+\Msg{* Installation}
+\Msg{* Package: pdfcrypt 2006/02/20 v0.8 Setting pdf encryption (HO)}
+\Msg{************************************************************************}
+
+\keepsilent
+\askforoverwritefalse
+
+\preamble
+
+This is a generated file.
+
+Copyright (C) 2001, 2006 by Heiko Oberdiek <oberdiek@uni-freiburg.de>
+
+This work may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either
+version 1.3 of this license or (at your option) any later
+version. The latest version of this license is in
+ http://www.latex-project.org/lppl.txt
+and version 1.3 or later is part of all distributions of
+LaTeX version 2005/12/01 or later.
+
+This work has the LPPL maintenance status "maintained".
+
+This Current Maintainer of this work is Heiko Oberdiek.
+
+This work consists of the main source file pdfcrypt.dtx
+and the derived files
+ pdfcrypt.sty, pdfcrypt.pdf, pdfcrypt.ins, pdfcrypt.drv.
+
+\endpreamble
+
+\generate{%
+ \file{pdfcrypt.ins}{\from{pdfcrypt.dtx}{install}}%
+ \file{pdfcrypt.drv}{\from{pdfcrypt.dtx}{driver}}%
+ \usedir{tex/generic/oberdiek}%
+ \file{pdfcrypt.sty}{\from{pdfcrypt.dtx}{package}}%
+}
+
+\obeyspaces
+\Msg{************************************************************************}
+\Msg{*}
+\Msg{* To finish the installation you have to move the following}
+\Msg{* file into a directory searched by TeX:}
+\Msg{*}
+\Msg{* pdfcrypt.sty}
+\Msg{*}
+\Msg{* To produce the documentation run the file `pdfcrypt.drv'}
+\Msg{* through LaTeX.}
+\Msg{*}
+\Msg{* Happy TeXing!}
+\Msg{*}
+\Msg{************************************************************************}
+
+\endbatchfile
+%</install>
+%<*ignore>
+\fi
+%</ignore>
+%<*driver>
+\NeedsTeXFormat{LaTeX2e}
+\ProvidesFile{pdfcrypt.drv}%
+ [2006/02/20 v0.8 Setting pdf encryption (HO)]
+\documentclass{ltxdoc}
+\usepackage{holtxdoc}
+\begin{document}
+ \DocInput{pdfcrypt.dtx}
+\end{document}
+%</driver>
+% \fi
+%
+% \CheckSum{730}
+%
+% \CharacterTable
+% {Upper-case \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+% Lower-case \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+% Digits \0\1\2\3\4\5\6\7\8\9
+% Exclamation \! Double quote \" Hash (number) \#
+% Dollar \$ Percent \% Ampersand \&
+% Acute accent \' Left paren \( Right paren \)
+% Asterisk \* Plus \+ Comma \,
+% Minus \- Point \. Solidus \/
+% Colon \: Semicolon \; Less than \<
+% Equals \= Greater than \> Question mark \?
+% Commercial at \@ Left bracket \[ Backslash \\
+% Right bracket \] Circumflex \^ Underscore \_
+% Grave accent \` Left brace \{ Vertical bar \|
+% Right brace \} Tilde \~}
+%
+% \GetFileInfo{pdfcrypt.drv}
+%
+% \title{The \xpackage{pdfcrypt} package}
+% \date{2006/02/20 v0.8}
+% \author{Heiko Oberdiek\\\xemail{oberdiek@uni-freiburg.de}}
+%
+% \maketitle
+%
+% \begin{abstract}
+% This package supports the setting of pdf encryption options
+% for \VTeX\ and some older versions of \pdfTeX.
+% \end{abstract}
+%
+% \tableofcontents
+%
+% \section{Documentation}
+%
+% This package allows the setting of pdf encryption
+% options for
+% \begin{itemize}
+% \item
+% \VTeX, since version 7.35, \url{http://www.micropress-inc.com/}.
+% \item
+% \pdfTeX, patched by
+% \NameEmail{Ricardo Sanchez Carmenes}{carmenes@bioquimica.uniovi.es}.\\
+% Some supported versions are:
+% \begin{quote}
+% \pdfTeX-1.00a,\\
+% \pdfTeX-0.14h-pdfcrypt-20010310,\\
+% pdfcrypt-20010331
+% \end{quote}
+% \end{itemize}
+%
+% \noindent
+% \textcolor{red}{Note:} Since \pdfTeX-1.10a (2003-01-16) encryption
+% support was dropped! Thus the package is now obsolete for recent
+% \pdfTeX\ versions.
+%
+% \subsection{Alternatives}
+%
+% There are free alternatives, programs that can
+% be used for postprocessing the pdf file:
+% \begin{itemize}
+% \item \textsf{pdftk}\\
+% \url{http://www.accesspdf.com/pdftk/}
+% \item \textsf{Multivalent}\\
+% \url{http://multivalent.sourceforge.net/}
+% \item \textsf{PDFBox}\\
+% \url{http://www.pdfbox.org/}
+% \item \textsf{PDFTrans}\\
+% \url{http://maddingue.free.fr/softwares/pdftrans.html}
+% \item \dots
+% \end{itemize}
+%
+% \subsection{Usage}
+%
+% The options can be set as package options or
+% with the command \cs{pdfcryptsetup}:
+% \begin{quote}
+% |owner=|\meta{owner password}\\
+% |user=|\meta{user password}\\
+% |print|, |copy|, |edit|, |annotate=true|, |false|\\
+% |all|, |none|\\
+% |debug|
+% \end{quote}
+% The encryption is set at |\begin{document}| by default,
+% but this can be forced for an earlier time
+% using the option |set|.
+% Example:
+% \begin{quote}
+% |\usepackage[owner=Donald,user=Knuth,print=false]{pdfcrypt}|\\
+% \dots\\
+% |\begin{document}|
+% \end{quote}
+% or
+% \begin{quote}
+% |\usepackage{pdfcrypt}|\\
+% |\pdfcryptsetup{owner=Donald,user=Knut}|\\
+% |\pdfcryptsetup{print=false,set}|\\
+% \dots\\
+% |\begin{document}|
+% \end{quote}
+%
+% \subsubsection{Special characters}
+%
+% The characters `|{|', `|}|', and `|\|' have to be
+% escaped with `|\|'. Then the string should not
+% be specified as package option but with
+% the macro \cs{pdfcryptsetup}, eg:
+% \begin{quote}
+% |\pdfcryptsetup{user={\{\\Hello\}},print=false}|
+% \end{quote}
+% The password here is ``|{\Hello}|''.
+% Active characters can be used and are not expanded.
+% Macros except for |\{|, |\}|, and |\\| should not be used
+% and are not expanded.
+%
+% \subsubsection{\cs{nopdfcrypt}}
+%
+% Often the whole process of pdf generation includes
+% several \TeX\ compilations and perhaps other
+% postprocessing steps. Therefore a feature would
+% be useful to disable the encryption stuff in order
+% to speed up the first compilations.
+% Therefore package \xpackage{pdfcrypt} will look for
+% the macro \cs{nopdfcrypt}. If it has the meaning of the
+% letter `|Y|', the package will be disabled.
+% Example:
+% \begin{quote}
+% |pdflatex '\let\nopdfcrypt=Y\input myfile'|\\
+% |thumbpdf myfile|\\
+% |pdfelatex myfile|
+% \end{quote}
+%
+% \subsubsection{Configuration file}
+%
+% If the file \xfile{pdfcrypt.cfg} exists it is loaded
+% and can be used for common settings.
+%
+% \subsubsection{Support for \plainTeX}
+%
+% The package can also be used with \plainTeX. It defines the
+% missing \LaTeX\ macros and loads package \xpackage{keyval}.
+% The configuration file is not supported and automatically
+% loaded.
+%
+% \subsection{Hints for \pdfTeX}
+%
+% This section is out of date, because the encryption support
+% was removed from \pdfTeX. Therefore this hints are of
+% historical interest only.
+%
+%\begin{verbatim}
+%* There are packages such as thumbpdf that ship out
+% some stuff (\immediate\pdfobj{...}). In these cases
+% \pdfcrypt will be ignored without warning or error
+% message. Therefore the package pdfcrypt should be
+% loaded before and option "set" should be used in
+% order to force the call of \pdfcrypt, for example:
+% \usepackage{pdfcrypt}
+% \pdfcryptsetup{..., set}
+% ...
+% \usepackage{thumbpdf}
+%
+%* Compiling pdfTeX (eg. version 1.00a-pretest-20010804):
+% pdfTeX versions are available at
+% ftp://ftp.cstug.cz/pub/tex/local/cstug/thanh/pdftex/snapshots/
+% Unpack the latest .tgz file:
+% > tar xzf pdftex-20010804.tgz
+% Enable encryption support:
+% src> cd src/texk/web2c/pdftexdir
+% src/texk/web2c/pdftexdir> ln -fs pdfcrypt-full.c pdfcrypt.c
+% Compile:
+% src/texk/web2c/pdftexdir> cd ../../..
+% src> ./configure
+% src> cd texk/web2c
+% src/texk/web2c> make pdftexbin
+% At last install the binary and pool files.
+%\end{verbatim}
+%
+% \StopEventually{
+% }
+%
+% \section{Implementation}
+%
+% \begin{macrocode}
+%<*package>
+% \end{macrocode}
+%
+% \subsection{Help macros for \plainTeX}
+%
+% \begin{macrocode}
+\expandafter\edef\csname pc@endinput\endcsname{%
+ \catcode`\noexpand\@=\the\catcode`\@\relax
+ \noexpand\endinput
+}
+\catcode`\@=11 %
+
+\expandafter\ifx\csname @firstoftwo\endcsname\relax
+ \long\def\@firstoftwo#1#2{#1}%
+\fi
+
+\expandafter\ifx\csname @secondoftwo\endcsname\relax
+ \long\def\@secondoftwo#1#2{#2}%
+\fi
+
+\expandafter\ifx\csname @ifundefined\endcsname\relax
+ \def\@ifundefined#1{%
+ \expandafter\ifx\csname #1\endcsname\relax
+ \expandafter\@firstoftwo
+ \else
+ \expandafter\@secondoftwo
+ \fi
+ }%
+\fi
+
+\@ifundefined{@ifnextchar}{%
+ \long\def\@ifnextchar#1#2#3{%
+ \let\reserved@d=#1%
+ \def\reserved@a{#2}%
+ \def\reserved@b{#3}%
+ \futurelet\@let@token\@ifnch
+ }%
+ \def\@ifnch{%
+ \ifx\@let@token\@sptoken
+ \let\reserved@c\@xifnch
+ \else
+ \ifx\@let@token\reserved@d
+ \let\reserved@c\reserved@a
+ \else
+ \let\reserved@c\reserved@b
+ \fi
+ \fi
+ \reserved@c
+ }%
+ \begingroup
+ \def\:{\global\let\@sptoken= }%
+ \: %
+ \def\:{\@xifnch}%
+ \expandafter\gdef\: {\futurelet\@let@token\@ifnch}%
+ \endgroup
+}{}
+
+\@ifundefined{ProvidesPackage}{%
+ \def\ProvidesPackage#1{%
+ \@ifnextchar[{\pc@ProvidesPackage{#1}}
+ {\pc@ProvidesPackage{#1}[]}%
+ }%
+ \def\pc@ProvidesPackage#1[#2]{%
+ \immediate\write-1{Package: #1 #2}%
+ }%
+}{}
+
+\@ifundefined{PackageError}{%
+ \def\PackageError#1#2#3{%
+ \begingroup
+ \newlinechar=10 %
+ \errhelp{#3}%
+ \errmessage{%
+ \MessageBreak
+ Package #1 Error: #2.\MessageBreak
+ \MessageBreak
+ See the #1 package documentation for explanation.\MessageBreak
+ Type \space H <return> \space for immediate help%
+ }%
+ \endgroup
+ }%
+}{}
+
+\@ifundefined{PackageWarning}{%
+ \def\PackageWarning#1#2{%
+ \begingroup
+ \newlinechar=10 %
+ \def\MessageBreak{%
+ ^^J(#1)\@spaces\@spaces\@spaces\@spaces
+ }%
+ \immediate\write16{^^JPackage #1 Warning: #2\on@line.^^J}%
+ \endgroup
+ }%
+}{}
+
+\@ifundefined{PackageWarningNoLine}{%
+ \def\PackageWarningNoLine#1#2{%
+ \PackageWarning{#1}{#2\@gobble}%
+ }%
+}{}
+
+\@ifundefined{@gobble}{%
+ \long\def\@gobble#1{}%
+}{}
+
+\@ifundefined{on@line}{%
+ \def\on@line{ on input line \the\inputlineno}%
+}{}
+
+\@ifundefined{@empty}{%
+ \def\@empty{}%
+}{}
+% \end{macrocode}
+%
+% \subsection{Package Identification and checks}
+%
+% \begin{macrocode}
+\ProvidesPackage{pdfcrypt}%
+ [2006/02/20 v0.8 Setting pdf encryption (HO)]
+% \end{macrocode}
+%
+% \begin{macrocode}
+\@ifundefined{pdfcryptsetup}{%
+ \let\pdfcryptsetup\@gobble
+}{%
+ \PackageWarningNoLine{pdfcrypt}{Package pdfcrypt is already loaded}%
+ \pc@endinput
+}
+% \end{macrocode}
+% Support for \cs{nopdfcrypt}.
+% \begin{macrocode}
+\newif\ifpc@nopdfcrypt
+\ifx Y\nopdfcrypt
+ \PackageWarningNoLine{pdfcrypt}{%
+ Encryption disabled by \string \nopdfcrypt\space request%
+ }%
+ \global\pc@nopdfcrypttrue
+\fi
+% \end{macrocode}
+%
+% \subsection{Driver detection}
+%
+% \begin{macrocode}
+\let\pc@driver\@empty
+\begingroup
+ % pdfTeX detection
+ \@ifundefined{pdfoutput}{%
+ }{%
+ \ifcase\pdfoutput
+ \else
+ \@ifundefined{pdfcrypt}{%
+ \PackageError{pdfcrypt}{%
+ PDF encryption is not supported with this pdfTeX%
+ }{%
+ Encryption support was added in 0.14h (2001/03/10)\MessageBreak
+ and removed in 1.10a (2003/01/16).%
+ }%
+ \endgroup
+ \pc@endinput
+ }{%
+ \gdef\pc@driver{pdftex}%
+ }
+ \fi
+ }%
+ % VTeX detection
+ \@ifundefined{OpMode}{%
+ }{%
+ \ifnum\OpMode=1 %
+ \ifnum\@ifundefined{VTeXversion}0\VTeXversion<735 %
+ \PackageError{pdfcrypt}{%
+ PDF encryption is not supported with this VTeX%
+ }{%
+ You need VTeX 7.35 or higher.%
+ }%
+ \endgroup
+ \pc@endinput
+ \else
+ \gdef\pc@driver{vtex}%
+ \fi
+ \fi
+ }%
+\endgroup
+% \end{macrocode}
+%
+% \subsection{Load package \xpackage{keyval}}
+%
+% \begin{macrocode}
+\@ifundefined{@makeother}{%
+ \def\@makeother#1{\catcode`#1=12\relax}%
+}{}
+
+\@ifundefined{g@addto@macro}{%
+ \long\def\g@addto@macro#1#2{%
+ \begingroup
+ \toks@\expandafter{#1#2}%
+ \xdef#1{\the\toks@}%
+ \endgroup
+ }%
+}{}
+
+\@ifundefined{@namedef}{%
+ \def\@namedef#1{\expandafter\def\csname#1\endcsname}
+}{}
+
+\@ifundefined{@nameuse}{%
+ \def\@nameuse#1{\csname #1\endcsname}%
+}{}
+
+\@ifundefined{MessageBreak}{%
+ \def\MessageBreak{^^J}%
+}{}
+
+\@ifundefined{@ehc}{%
+ \def\@ehc{%
+ Try typing \space <return> \space to proceed.\MessageBreak
+ If that doesn't work, type \space X <return> \space
+ to quit.%
+ }%
+}{}
+
+\@ifundefined{PackageInfo}{%
+ \def\PackageInfo#1#2{%
+ \begingroup
+ \newlinechar=10 %
+ \def\MessageBreak{%
+ ^^J(#1) \space\@spaces\@spaces\@spaces
+ }%
+ \wlog{Package #1 Info: #2}%
+ \endgroup
+ }%
+}{}
+
+\@ifundefined{@spaces}{%
+ \def\@spaces{\space\space\space\space}%
+}{}
+
+\def\pc@KeyvalRestore{%
+ \let\pc@KeyvalRestore\@undefined
+}
+
+\let\pcOrg@NeedsTeXFormat\NeedsTeXFormat
+\@ifundefined{NeedsTeXFormat}{%
+ \def\NeedsTeXFormat#1{}%
+ \g@addto@macro\pc@KeyvalRestore{%
+ \let\NeedsTeXFormat\pcOrg@NeedsTeXFormat
+ }%
+}{}
+
+\let\pcOrg@DeclareOption\DeclareOption
+\@ifundefined{DeclareOption}{%
+ \def\DeclareOption#1#2{#2}%
+ \g@addto@macro\pc@KeyvalRestore{%
+ \let\DeclareOption\pcOrg@DeclareOption
+ }%
+}{}
+
+\let\pcOrg@ExecuteOptions\ExecuteOptions
+\@ifundefined{ExecuteOptions}{%
+ \def\ExecuteOptions#1{}%
+ \g@addto@macro\pc@KeyvalRestore{%
+ \let\ExecuteOptions\pcOrg@ExecuteOptions
+ }%
+}{}
+
+\let\pcOrg@ProcessOptions\ProcessOptions
+\@ifundefined{ProcessOptions}{%
+ \def\ProcessOptions{}%
+ \g@addto@macro\pc@KeyvalRestore{%
+ \let\ProcessOptions\pcOrg@ProcessOptions
+ }%
+}{}%
+
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname RequirePackage\endcsname\relax
+ \input keyval.sty
+\else
+ \RequirePackage{keyval}
+\fi
+\pc@KeyvalRestore
+% \end{macrocode}
+%
+% \subsection{Define options}
+%
+% \begin{macrocode}
+\@ifundefined{@dblarg}{%
+ \long\def\@dblarg#1{\@ifnextchar[{#1}{\@xdblarg{#1}}}
+ \long\def\@xdblarg#1#2{#1[{#2}]{#2}}
+}{}
+
+\newif\ifpc@set
+\newif\ifpc@print
+\newif\ifpc@copy
+\newif\ifpc@edit
+\newif\ifpc@annotate
+\newif\ifpc@debug
+\let\pc@owner\@empty
+\let\pc@user\@empty
+
+% default: allow all
+\pc@printtrue
+\pc@copytrue
+\pc@edittrue
+\pc@annotatetrue
+
+\edef\pc@temp{\catcode`\noexpand\"=\the\catcode`\"\relax}
+\@makeother\"
+\def\pc@set{%
+ \PackageInfo{pdfcrypt}{%
+ \ifpc@debug
+ \ifx\pc@owner\@empty
+ No owner password%
+ \else
+ Owner password: `\pc@owner'%
+ \fi
+ \MessageBreak
+ \ifx\pc@user\@empty
+ No user password%
+ \else
+ User password: `\pc@user'%
+ \fi
+ \MessageBreak
+ Flags: %
+ \ifpc@print \else no\fi print, %
+ \ifpc@copy \else no\fi copy, %
+ \ifpc@edit \else no\fi edit, %
+ \ifpc@annotate\else no\fi annotate%
+ \MessageBreak
+ \fi
+ \ifpc@nopdfcrypt
+ Encryption is disabled by `\string\nopdfcrypt'%
+ \else
+ Encryption is set for `\pc@driver'%
+ \fi
+ }
+ \ifpc@nopdfcrypt
+ \else
+ \@ifundefined{pc@set@\pc@driver}{%
+ \ifx\pc@driver\@empty
+ \PackageError{pdfcrypt}{No driver for encryption %
+ support found}\@ehc
+ \else
+ \PackageError{pdfcrypt}{Cannot set encryption for %
+ unknown driver `\pc@driver'}\@ehc
+ \fi
+ }{%
+ \@nameuse{pc@set@\pc@driver}%
+ }%
+ \fi
+}
+\def\pc@set@pdftex{%
+ \ifnum\pdftexversion<100 %
+ \pc@set@pdftexold
+ \else
+ \pc@set@pdftexnew
+ \fi
+}
+\def\pc@set@pdftexold{%
+ \pdfcrypt{%
+ owner "\pc@owner"
+ user "\pc@user"
+ \ifpc@print \else no\fi print
+ \ifpc@copy \else no\fi copy
+ \ifpc@edit \else no\fi edit
+ \ifpc@annotate\else no\fi annotate%
+ }%
+}
+\def\pc@set@pdftexnew{%
+ \pdfcrypt
+ owner{\pc@owner}%
+ user{\pc@user}%
+ \ifpc@print \else no\fi print
+ \ifpc@copy \else no\fi copy
+ \ifpc@edit \else no\fi edit
+ \ifpc@annotate\else no\fi annotate%
+ \relax
+}
+\def\pc@set@vtex{%
+ \immediate\special{!security %
+ O=\pc@MakeVTeXString\pc@owner,%
+ U=\pc@MakeVTeXString\pc@user,%
+ P\ifpc@print +\else -\fi,%
+ C\ifpc@copy +\else -\fi,%
+ M\ifpc@edit +\else -\fi,%
+ A\ifpc@annotate +\else -\fi
+ }%
+}
+\def\pc@MakeVTeXString#1{%
+ "\expandafter\pc@@MakeVTeXString#1"\@nil"%
+}
+\def\pc@@MakeVTeXString#1"#2\@nil{%
+ #1%
+ \ifx\\#2\\%
+ \else
+ ""%
+ \@ReturnAfterFi{%
+ \pc@@MakeVTeXString#2\@nil
+ }%
+ \fi
+}
+\long\def\@ReturnAfterFi#1\fi{\fi#1}
+\pc@temp
+
+\begingroup
+ \catcode`\ =12 \gdef\pc@spaceother{ }\catcode`\ =10\relax
+ \catcode`\|=0 %
+ \catcode`\\=12 %
+ |gdef|pc@DefString#1#2{%
+ |def#1{#2}%
+ |edef#1{|expandafter|strip@prefix|meaning#1}%
+ |edef#1{|expandafter|pc@SpaceToOther#1 |@nil}%
+ |edef#1{|expandafter|pc@EscapeRemove#1|@empty\|@empty|@nil}%
+ }
+ |gdef|pc@EscapeRemove#1\#2#3|@nil{%
+ #1#2%
+ |ifx|\#3|\%
+ |else
+ |@ReturnAfterFi{%
+ |pc@EscapeRemove#3|@nil
+ }%
+ |fi
+ }
+|endgroup
+\def\pc@SpaceToOther#1 #2\@nil{%
+ #1%
+ \ifx\\#2\\%
+ \else
+ \pc@spaceother
+ \@ReturnAfterFi{%
+ \pc@SpaceToOther#2\@nil
+ }%
+ \fi
+}
+
+\def\pc@boolkey{\@dblarg\pc@@boolkey}
+\def\pc@@boolkey[#1]#2#3{%
+ \lowercase{\def\pc@temp{#3}}%
+ \ifx\pc@temp\@empty
+ \let\pc@temp\pc@true
+ \fi
+ \ifx\pc@temp\pc@true
+ \else
+ \ifx\pc@temp\pc@false
+ \else
+ \let\pc@temp\relax
+ \fi
+ \fi
+ \ifx\pc@temp\relax
+ \PackageWarning{pdfcrypt}{%
+ Unexpected value \string`#3\string' of
+ option \string`#2\string'\MessageBreak
+ instead of
+ \string`true\string' or \string`false\string'%
+ }%
+ \else
+ \csname pc@#2\pc@temp\endcsname
+ \fi
+}
+\def\pc@true{true}
+\def\pc@false{false}
+
+\define@key{pc}{set}[true]{%
+ \pc@boolkey{set}{#1}%
+}
+\define@key{pc}{pdftex}[]{%
+ \def\pc@driver{pdftex}%
+}
+\define@key{pc}{vtex}[]{%
+ \def\pc@driver{vtex}%
+}
+\define@key{pc}{print}[true]{%
+ \pc@boolkey{print}{#1}%
+}
+\define@key{pc}{copy}[true]{%
+ \pc@boolkey{copy}{#1}%
+}
+\define@key{pc}{edit}[true]{%
+ \pc@boolkey{edit}{#1}%
+}
+\define@key{pc}{annotate}[true]{%
+ \pc@boolkey{annotate}{#1}%
+}
+\define@key{pc}{all}[]{%
+ \pc@boolkey{print}{true}%
+ \pc@boolkey{copy}{true}%
+ \pc@boolkey{edit}{true}%
+ \pc@boolkey{annotate}{true}%
+}
+\define@key{pc}{none}[]{%
+ \pc@boolkey{print}{false}%
+ \pc@boolkey{copy}{false}%
+ \pc@boolkey{edit}{false}%
+ \pc@boolkey{annotate}{false}%
+}
+
+\define@key{pc}{owner}{%
+ \pc@DefString\pc@owner{#1}%
+}
+\define@key{pc}{user}{%
+ \pc@DefString\pc@user{#1}%
+}
+\define@key{pc}{debug}[true]{%
+ \pc@boolkey{debug}{#1}%
+}
+
+\def\pdfcryptsetup#1{%
+ \setkeys{pc}{#1}%
+ \ifpc@set
+ \pc@set
+ \global\let\pc@set\relax
+ \gdef\pdfcryptsetup##1{%
+ \PackageWarning{pdfcrypt}{%
+ Encryption options are already set\MessageBreak
+ new values are ignored%
+ }%
+ }%
+ \fi
+}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname @onlypreamble\endcsname\relax
+\else
+ \@onlypreamble\pdfcryptsetup
+\fi
+% \end{macrocode}
+%
+% \subsection{support of configuration file}
+% \begin{macrocode}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname InputIfFileExists\endcsname\relax
+ \PackageInfo{pdfcrypt}{%
+ Configuration file pdfcrypt.cfg not supported.%
+ }%
+\else
+ \let\pc@ExecuteOptions\ExecuteOptions
+ \InputIfFileExists{pdfcrypt.cfg}{}{}
+ \let\ExecuteOptions\pc@ExecuteOptions
+\fi
+% \end{macrocode}
+%
+% \subsection{Package options}
+%
+% Plain format does not know package options.
+% \begin{macrocode}
+\begingroup\expandafter\expandafter\expandafter\endgroup
+\expandafter\ifx\csname @classoptionslist\endcsname\relax
+ \expandafter\pc@endinput
+\fi
+% \end{macrocode}
+% Process global and local options.
+% \begin{macrocode}
+\def\pc@ProcessOptionsWithKV{%
+ \let\pc@temp\@empty
+ \@for\CurrentOption:=\@classoptionslist\do{%
+ \@ifundefined{KV@pc@\CurrentOption}{}{%
+ \edef\pc@temp{\pc@temp,\CurrentOption,}%
+ \@expandtwoargs\@removeelement\CurrentOption
+ \@unusedoptionlist\@unusedoptionlist
+ }%
+ }%
+ \edef\pc@temp{%
+ \noexpand\pdfcryptsetup{%
+ \pc@temp\@ptionlist{\@currname.\@currext}%
+ }%
+ }%
+ \pc@temp
+}
+\pc@ProcessOptionsWithKV
+\AtEndOfPackage{\let\@unprocessedoptions\relax}
+\AtBeginDocument{\pc@set}
+
+\pc@endinput
+% \end{macrocode}
+%
+% \begin{macrocode}
+%</package>
+% \end{macrocode}
+% \section{Installation}
+%
+% \paragraph{CTAN.} This package is available on
+% CTAN\footnote{\url{ftp://ftp.ctan.org/tex-archive/}}:
+% \begin{description}
+% \item[\CTAN{macros/latex/contrib/oberdiek/pdfcrypt.dtx}] The source file.
+% \item[\CTAN{macros/latex/contrib/oberdiek/pdfcrypt.pdf}] Documentation.
+% \end{description}
+%
+% \paragraph{Unpacking.} The \xfile{.dtx} file is a self-extracting
+% \docstrip\ archive. The files are extracted by running the
+% \xfile{.dtx} through \plainTeX:
+% \begin{quote}
+% \verb|tex pdfcrypt.dtx|
+% \end{quote}
+%
+% \paragraph{TDS.} Now the different files must be moved into
+% the different directories in your installation TDS tree
+% (also known as \xfile{texmf} tree):
+% \begin{quote}
+% \sbox0{^^A
+% \begin{tabular}{@{}>{\ttfamily}l@{$\quad\rightarrow\quad$}>{\ttfamily}l@{}}
+% pdfcrypt.sty & tex/generic/oberdiek/pdfcrypt.sty\\
+% pdfcrypt.pdf & doc/latex/oberdiek/pdfcrypt.pdf\\
+% pdfcrypt.dtx & source/latex/oberdiek/pdfcrypt.dtx\\
+% \end{tabular}^^A
+% }%
+% \ifdim\wd0>\linewidth
+% \mbox{}\nobreak\hskip0pt minus\leftmargin
+% \usebox0
+% \nobreak\hskip0pt minus\rightmargin
+% \else
+% \usebox0
+% \fi
+% \end{quote}
+% If you have a \xfile{docstrip.cfg} that configures and enables \docstrip's
+% TDS installing feature, then some files can already be in the right
+% place, see the documentation of \docstrip.
+%
+% \paragraph{Refresh file databases.} If your \TeX~distribution
+% (\teTeX, \mikTeX, \dots) rely on file databases, you must refresh
+% these. For example, \teTeX\ users run \verb|texhash| or
+% \verb|mktexlsr|.
+%
+% \subsection{Some details for the interested}
+%
+% \paragraph{Attached source.}
+%
+% The PDF documentation on CTAN also includes the
+% \xfile{.dtx} source file. It can be extracted by
+% AcrobatReader 6 or higher. Another option is \textsf{pdftk},
+% e.g. unpack the file into the current directory:
+% \begin{quote}
+% \verb|pdftk pdfcrypt.pdf unpack_files output .|
+% \end{quote}
+%
+% \paragraph{Unpacking with \LaTeX.}
+% The \xfile{.dtx} chooses its action depending on the format:
+% \begin{description}
+% \item[\plainTeX:] Run \docstrip\ and extract the files.
+% \item[\LaTeX:] Generate the documentation.
+% \end{description}
+% If you insist on using \LaTeX\ for \docstrip\ (really,
+% \docstrip\ does not need \LaTeX), then inform the autodetect routine
+% about your intension:
+% \begin{quote}
+% \verb|latex \install=y\input{pdfcrypt.dtx}|
+% \end{quote}
+% Do not forget to quote the argument according to the demands
+% of your shell.
+%
+% \paragraph{Generating the documentation.}
+% You can use both the \xfile{.dtx} or the \xfile{.drv} to generate
+% the documentation. The process can be configured by the
+% configuration file \xfile{ltxdoc.cfg}. For instance, put this
+% line into this file, if you want to have A4 as paper format:
+% \begin{quote}
+% \verb|\PassOptionsToClass{a4paper}{article}|
+% \end{quote}
+% An example follows how to generate the
+% documentation with pdf\LaTeX:
+% \begin{quote}
+%\begin{verbatim}
+%pdflatex pdfcrypt.dtx
+%makeindex -s gind.ist pdfcrypt.idx
+%pdflatex pdfcrypt.dtx
+%makeindex -s gind.ist pdfcrypt.idx
+%pdflatex pdfcrypt.dtx
+%\end{verbatim}
+% \end{quote}
+%
+% \begin{History}
+% \begin{Version}{2001/04/02 v0.1}
+% \item
+% First public version, published in the pdftex
+% mailing list for testing with pdfcrypt-20010331
+% \end{Version}
+% \begin{Version}{2001/07/19 v0.2}
+% \item
+% Default: all allowed.
+% \item
+% Support for \VTeX\ added.
+% \end{Version}
+% \begin{Version}{2001/07/19 v0.3}
+% \item
+% Bug fix: \VTeX\ letter for edit is M (modify).
+% \end{Version}
+% \begin{Version}{2001/07/19 v0.4}
+% \item
+% Bug fix: \cs{VTeXversion} is correct after
+% regenerating the format file.
+% \end{Version}
+% \begin{Version}{2001/08/05 v0.5}
+% \item
+% Syntax change in \pdfTeX\ 1.00a.
+% \end{Version}
+% \begin{Version}{2001/08/09 v0.6}
+% \item
+% Support of special characters:\\
+% input: |\{|, |\}|, |\\| for |{|, |}|, |\|\\
+% output: |"| in \VTeX
+% \item
+% Option debug added.
+% \end{Version}
+% \begin{Version}{2001/10/28 v0.7}
+% \item
+% Plain compatibility.
+% \item
+% \cs{nopdfcrypt} added.
+% \item
+% Typos corrected.
+% \end{Version}
+% \begin{Version}{2006/02/20 v0.8}
+% \item
+% Obsolete remarks for \pdfTeX.
+% \item
+% DTX framework.
+% \item
+% LPPL 1.3
+% \end{Version}
+% \end{History}
+%
+% \PrintIndex
+%
+% \Finale
+\endinput