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Document environment variables

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John Whitington
2025-03-27 16:41:10 +00:00
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@@ -1025,6 +1025,8 @@ systems to uniquely identify a file. To change the ID, behavior, use the
\noindent Write \texttt{in.pdf} to \texttt{out.pdf}, changing the ID.
\end{framed}
\noindent Setting the environment variable \texttt{CAMLPDF\_REPRODUCIBLE\_IDS} to \texttt{true} will use a standard value instead of generating one.
\section{Linearization}
\index{linearization}
Linearized PDF is a version of the PDF format in which the data is held in a
@@ -3551,7 +3553,7 @@ information dictionary:
\noindent (The details of the format for creation and modification dates can be found
in Appendix~\ref{dates}. Using the date \texttt{"now"} uses the time and date
at which the command is executed. Note also that \texttt{-producer} and \texttt{-creator} may be used to set the producer and/or the creator when writing any file, separate from the operations described in this chapter.)
at which the command is executed (unless the environment variable \texttt{CPDF\_REPRODUCIBLE\_DATES} is set to \texttt{true}). Note also that \texttt{-producer} and \texttt{-creator} may be used to set the producer and/or the creator when writing any file, separate from the operations described in this chapter.)
\vspace{2mm}
For example, to set the title, the full command line would be