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Add -composition to manual

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John Whitington
2023-06-01 16:56:15 +01:00
parent b5585ae5bf
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2 changed files with 37 additions and 1 deletions
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cpdfmanual.pdf
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cpdfmanual.tex
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@@ -2336,7 +2336,7 @@ font size and color.
\texttt{\%M} & Minute of the hour (00--59)\\ \texttt{\%M} & Minute of the hour (00--59)\\
\texttt{\%p} & "a.m" or "p.m"\\ \texttt{\%p} & "a.m" or "p.m"\\
\texttt{\%S} & Second of the minute (00--61)\\ \texttt{\%S} & Second of the minute (00--61)\\
\texttt{\%T} & Same as \%H:\%M:\%S\\ \texttt{\%T} & Same as \texttt{\%H:\%M:\%S}\\
\texttt{\%u} & Weekday (1--7, 1 = Sunday)\\ \texttt{\%u} & Weekday (1--7, 1 = Sunday)\\
\texttt{\%w} & Weekday (0--6, 0 = Sunday)\\ \texttt{\%w} & Weekday (0--6, 0 = Sunday)\\
\texttt{\%Y} & Year (0000--9999)\\ \texttt{\%Y} & Year (0000--9999)\\
@@ -2956,6 +2956,10 @@ given page range.
\vspace{1.5mm} \vspace{1.5mm}
\small\noindent\verb!cpdf -remove-page-labels in.pdf -o out.pdf!\\ \small\noindent\verb!cpdf -remove-page-labels in.pdf -o out.pdf!\\
\small\noindent\verb!cpdf -print-page-labels in.pdf! \small\noindent\verb!cpdf -print-page-labels in.pdf!
\vspace{1.5mm}
\small\noindent\verb!cpdf -composition in.pdf!\\
\small\noindent\verb!cpdf -composition-json in.pdf!
\end{framed} \end{framed}
\section{Reading Document Information} \section{Reading Document Information}
@@ -3225,6 +3229,38 @@ startvalue: 1
\end{verbatim} \end{verbatim}
\end{framed}\pagestyle{empty}\thispagestyle{fancy} \end{framed}\pagestyle{empty}\thispagestyle{fancy}
\section{Composition of a PDF}
The \texttt{-composition} and \texttt{-composition-json} operations show how much space in a PDF is used by each kind of data. Here is the output of \texttt{-composition} for this manual:
\begin{framed}\small\begin{verbatim}$ cpdf -composition cpdfmanual.pdf
Images: 0 bytes (0.00%)
Fonts: 144731 bytes (46.72%)
Content streams: 132767 bytes (42.85%)
Structure Info: 0 bytes (0.00%)
Attached Files: 0 bytes (0.00%)
XRef Table: 21082 bytes (6.80%)
Unclassified: 11229 bytes (3.62%)
\end{verbatim}
\end{framed}\pagestyle{empty}\thispagestyle{fancy}
\noindent And here it is in JSON format:
\begin{framed}\small\begin{verbatim}$ cpdf -composition-json cpdfmanual.pdf
[
("Images", 0, 0.0),
("Fonts", 144731, 46.71620256351494),
("Content streams", 132767, 42.854468398271194),
("Structure Info", 0, 0.0),
("Attached Files", 0, 0.0),
("XRef Table", 21082, 6.8048378194306816),
("Unclassified", 11229, 3.6244912187831857)
]
\end{verbatim}
\end{framed}\pagestyle{empty}\thispagestyle{fancy}
\noindent Note that, due to small inaccuracies in the method, it is possible for the \texttt{Unclassified} number to be negative.
\begin{cpdflib} \begin{cpdflib}
\clearpage \clearpage
\section*{C Interface} \section*{C Interface}