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John Whitington 2024-12-09 12:41:53 +00:00
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cpdfmanual.pdf
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cpdfmanual.tex
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@ -3728,7 +3728,8 @@ i, ii, iii, iv, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, A-0, A-1, A-2, A-3, A-4, A-5
Page labels may be removed altogether by using \texttt{-remove-page-labels} command. To print the page labels from an existing file, use \texttt{-print-page-labels}. For example:
\begin{framed}\small\begin{verbatim}$ cpdf -print-page-labels in.pdf
\begin{framed}\small\begin{verbatim}
$ cpdf -print-page-labels in.pdf
labelstyle: LowercaseRoman
labelprefix: None
startpage: 1
@ -3763,7 +3764,8 @@ startvalue: 1
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
\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%)
@ -3777,7 +3779,8 @@ Unclassified: 11229 bytes (3.62%)
\noindent And here it is in JSON format:
\begin{framed}\small\begin{verbatim}$ cpdf -composition-json cpdfmanual.pdf
\begin{framed}\small\begin{verbatim}
$ cpdf -composition-json cpdfmanual.pdf
[
("Images", 0, 0.0),
("Fonts", 144731, 46.71620256351494),
@ -4203,7 +4206,7 @@ NB: CMYK images will be converted to RGB or untouched by some of these processes
\section{Rasterization (PDF to image conversion)}
Cpdf can send individual pages of a PDF out to GhostScript to rasterize them - they are then read back in and replace the original page content:
Cpdf can send individual pages of a PDF out to \texttt{gs} to rasterize them - they are then read back in and replace the original page content:
\begin{framed}
\noindent\small\verb!cpdf -gs gs -rasterize in.pdf -o out.pdf!
@ -4223,11 +4226,11 @@ Option & Effect\\\hline
{\small\texttt{-rasterize-annots}} & Rasterize annotations instead of retaining\\
{\small\texttt{-rasterize-no-antialias}} & Turn off antialiasing\\
{\small\texttt{-rasterize-downsample}} & Use better but slower antialiasing\\
{\small\texttt{-gs-quiet}} & Don't show GhostScript output\\
{\small\texttt{-gs-quiet}} & Don't show \texttt{gs} output\\
\end{tabular}
\bigskip
\noindent In addition to rasterization of pages, we can export them in PNG or JPEG format, again by the use of GhostScript:
\noindent In addition to rasterization of pages, we can export them in PNG or JPEG format, again by the use of \texttt{gs}:
\begin{framed}
\noindent\small\verb!cpdf -gs gs -output-image in.pdf 10-end -o image%%%.png!