libraries/jbig2enc: Added (encoder for JBIG2).

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

9 files changed, 686 insertions, 0 deletions

diff --git a/libraries/jbig2enc/README b/libraries/jbig2enc/README
new file mode 100644
index 0000000000..6e7308438f
--- /dev/null
+++ b/libraries/jbig2enc/README
@@ -0,0 +1,11 @@
+jbig2enc (encoder for JBIG2)
+
+JBIG2 encodes bi-level (1 bpp) images using a number of clever tricks
+to get better compression than G4.
+
+The package includes shared libraries, headers, docs, the jbig2(1)
+command-line conversion tool, and pdf.py(1) which post-processes JBIG2
+files to create PDFs.
+
+Use of this software may require patent licenses in some countries.
+You are directed to annex I of the JBIG2 specification for information.
diff --git a/libraries/jbig2enc/jbig2.1 b/libraries/jbig2enc/jbig2.1
new file mode 100644
index 0000000000..98434b2a1e
--- /dev/null
+++ b/libraries/jbig2enc/jbig2.1
@@ -0,0 +1,197 @@
+.\" Man page generated from reStructuredText.
+.
+.TH JBIG2 1 "2016-11-05" "0.28" "SlackBuilds.org"
+.SH NAME
+jbig2 \- convert image files to JBIG2 format
+.
+.nr rst2man-indent-level 0
+.
+.de1 rstReportMargin
+\\$1 \\n[an-margin]
+level \\n[rst2man-indent-level]
+level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
+-
+\\n[rst2man-indent0]
+\\n[rst2man-indent1]
+\\n[rst2man-indent2]
+..
+.de1 INDENT
+.\" .rstReportMargin pre:
+. RS \\$1
+. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
+. nr rst2man-indent-level +1
+.\" .rstReportMargin post:
+..
+.de UNINDENT
+. RE
+.\" indent \\n[an-margin]
+.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
+.nr rst2man-indent-level -1
+.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
+.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
+..
+.\" RST source for jbig2(1) man page. Convert with:
+.
+.\" rst2man.py jbig2.rst > jbig2.1
+.
+.\" rst2man.py comes from the SBo development/docutils package.
+.
+.SH SYNOPSIS
+.sp
+\fBjbig2\fP [\fI\-options\fP] \fIimagefile\fP > \fIoutput.jb2\fP
+.SH DESCRIPTION
+.sp
+JBIG2 is an image compression standard from the same people who brought
+you the JPEG format. It compresses 1bpp (black and white) images only.
+.sp
+jbig2enc is a library that encodes JBIG2 images.
+.sp
+\fBjbig2\fP is a command\-line tool that uses the jbig2enc library to convert an
+image to the JBIG2 format. \fIimagefile\fP can be in any format readable by
+leptonica (png, jpeg, tiff, gif, webp, jp2, bmp, pnm, spix). The image
+is converted to 1bbp (monochrome) before processing.
+.sp
+Without the \fI\-p\fP, \fI\-\-pdf\fP option, the converted image is written to
+standard output. This should be redirected to a file, normally with
+the \fI\&.jb2\fP extension. If stdout isn\(aqt redirected to a file (or a pipe),
+the JBIG2 data will be written to the terminal, which may get confused.
+.sp
+There is no way to have \fBjbig2\fP read an image file on standard input. This
+is by design, as it needs to seek within the file.
+.sp
+All options must appear before the filename. With the generic encoder
+(no \fI\-s\fP option), anything after the filename is silently ignored. The
+symbol encoder (\fI\-s\fP) can handle multiple images (which end up as pages
+in the JBIG2 file).
+.sp
+The \fI\-r\fP, \fI\-\-refine\fP option mentioned in the documentation and in
+the \fI\-\-help\fP output of \fBjbig2\fP is \fIdisabled\fP in this version of
+\fBjbig2\fP\&.
+.SH OPTIONS
+.\" some of these are from the HTML file, some from --help.
+.
+.INDENT 0.0
+.TP
+.B \-b \fIbasename\fP
+Output file root name when using symbol coding in PDF mode (\fI\-s\fP
+and \fI\-p\fP). Default is \fBoutput\fP\&.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-d\fP,\fB  \-\-duplicate\-line\-removal
+When encoding generic regions each scan line can be tagged to indicate
+that it\(aqs the same as the last scanline \- and encoding that scanline
+is skipped. This drastically reduces the encoding time (by a factor
+of about 2 on some images) although it doesn\(aqt typically save any
+bytes. This is an option because some versions of jbig2dec (an open
+source decoding library) cannot handle this.
+.TP
+.B \-p\fP,\fB  \-\-pdf
+The PDF spec includes support for JBIG2 (Syntax\->Filters\->JBIG2Decode in
+the PDF references for versions 1.4 and above). However, PDF requires
+a slightly different format for JBIG2 streams: no file/page headers or
+trailers and all pages are numbered 1. In symbol mode the output is to
+a series of files: symboltable and page\-n (numbered from 0). By default
+these are named \fBoutput.sym\fP and \fBoutput.0000\fP, \fBoutput.0001\fP,
+etc. Use \fI\-b\fP to change the base filename.
+.TP
+.B \-s\fP,\fB  \-\-symbol\-mode
+Use symbol encoding. Turn on for scanned text pages.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-t \fIthreshold\fP
+Sets the fraction of pixels which have to match in order for
+two symbols to be classed the same. This isn\(aqt strictly true, as there are
+other tests as well, but increasing this will generally increase the number
+of symbol classes. Default is 0.85.
+.TP
+.B \-T \fIthreshold\fP
+Sets the black threshold (0\-255). Any gray value darker than
+this is considered black. Anything lighter is considered white.
+Default is 188.
+.TP
+.B \-O \fIoutfile\fP
+Dump a PNG of the 1 bpp image before encoding. Can be used to
+test loss.
+.UNINDENT
+.INDENT 0.0
+.TP
+.B \-2\fP,\fB  \-4
+Upscale either two or four times before converting to black and
+white.
+.TP
+.B \-S
+Segment an image into text and non\-text regions. This isn\(aqt perfect, but
+running text through the symbol compressor is terrible so it\(aqs worth doing
+if your input has images in it (like a magazine page).
+.TP
+.B \-\-image\-output
+Set filename to which the parts which were removed by \-S are written.
+Default is PNG format.
+.TP
+.B \-j\fP,\fB  \-\-jpeg\-output
+Write images from \-S as JPEG instead of PNG.
+.TP
+.B \-a\fP,\fB  \-\-auto\-thresh
+Use automatic thresholding in symbol encoder.
+.TP
+.B \-\-no\-hash
+Disables use of hash function for automatic thresholding.
+.TP
+.B \-v
+Be verbose.
+.TP
+.B \-V\fP,\fB  \-\-version
+Display version number and exit.
+.TP
+.B \-h\fP,\fB  \-\-help
+Display help and exit.
+.UNINDENT
+.SH EXIT STATUS
+.sp
+\fBjbig2\fP exits with 0 (success) status if the conversion completed
+OK, and non\-zero status if anything went wrong. If standard output was
+redirected to a file, the file will be empty or invalid when non\-zero
+status is returned. Diagnostic messages are printed to standard error.
+.SH COPYRIGHT
+.sp
+See the file /usr/doc/jbig2enc\-0.28/COPYING for license information.
+.sp
+This software is a description of processes which may be patented.
+.sp
+Use of this software may require patent licenses in some countries.
+You are directed to annex I of the JBIG2 specification for information.
+.INDENT 0.0
+.TP
+.B Some information could be found at:
+\fI\%http://www.jpeg.org/jbig/index.html\fP
+\fI\%http://www.cl.cam.ac.uk/~mgk25/jbigkit/patents/\fP
+\fI\%http://www.jpeg.org/public/fcd14492.pdf\fP
+\fI\%http://itscj.ipsj.or.jp/sc29/open/29view/29n55161.doc\fP
+.UNINDENT
+.SH AUTHORS
+.INDENT 0.0
+.TP
+.B jbig2 and jbig2enc were written by:
+Adam Langley <\fI\%agl@imperialviolet.org\fP>.
+.UNINDENT
+.sp
+This man page written for the SlackBuilds.org project
+by B. Watson, and is licensed under the WTFPL.
+.SH SEE ALSO
+.sp
+\fBpdf.py(1)\fP, \fBjbig2dec(1)\fP
+.INDENT 0.0
+.TP
+.B Full documentation for jbig2 and jbig2enc:
+/usr/doc/jbig2enc\-0.28/jbig2enc.html
+.TP
+.B The JBIG2 specification was formerly located at:
+\fI\%http://www.jpeg.org/public/fcd14492.pdf\fP
+.TP
+.B A copy can be found here:
+\fI\%http://www.hlevkin.com/Standards/fcd14492.pdf\fP
+.UNINDENT
+.\" Generated by docutils manpage writer.
+.
diff --git a/libraries/jbig2enc/jbig2.rst b/libraries/jbig2enc/jbig2.rst
new file mode 100644
index 0000000000..fc17dcb3f3
--- /dev/null
+++ b/libraries/jbig2enc/jbig2.rst
@@ -0,0 +1,176 @@
+.. RST source for jbig2(1) man page. Convert with:
+..   rst2man.py jbig2.rst > jbig2.1
+.. rst2man.py comes from the SBo development/docutils package.
+
+.. |version| replace:: 0.28
+.. |date| date::
+
+=====
+jbig2
+=====
+
+-----------------------------------
+convert image files to JBIG2 format
+-----------------------------------
+
+:Manual section: 1
+:Manual group: SlackBuilds.org
+:Date: |date|
+:Version: |version|
+
+SYNOPSIS
+========
+
+**jbig2** [*-options*] *imagefile* > *output.jb2*
+
+DESCRIPTION
+===========
+
+JBIG2 is an image compression standard from the same people who brought
+you the JPEG format. It compresses 1bpp (black and white) images only.
+
+jbig2enc is a library that encodes JBIG2 images.
+
+**jbig2** is a command-line tool that uses the jbig2enc library to convert an
+image to the JBIG2 format. *imagefile* can be in any format readable by
+leptonica (png, jpeg, tiff, gif, webp, jp2, bmp, pnm, spix). The image
+is converted to 1bbp (monochrome) before processing.
+
+Without the *-p*, *--pdf* option, the converted image is written to
+standard output. This should be redirected to a file, normally with
+the *.jb2* extension. If stdout isn't redirected to a file (or a pipe),
+the JBIG2 data will be written to the terminal, which may get confused.
+
+There is no way to have **jbig2** read an image file on standard input. This
+is by design, as it needs to seek within the file.
+
+All options must appear before the filename. With the generic encoder
+(no *-s* option), anything after the filename is silently ignored. The
+symbol encoder (*-s*) can handle multiple images (which end up as pages
+in the JBIG2 file).
+
+The *-r*, *--refine* option mentioned in the documentation and in
+the *--help* output of **jbig2** is *disabled* in this version of
+**jbig2**.
+
+OPTIONS
+=======
+
+.. some of these are from the HTML file, some from --help.
+
+-b *basename*
+  Output file root name when using symbol coding in PDF mode (*-s*
+  and *-p*). Default is **output**.
+
+-d, --duplicate-line-removal
+  When encoding generic regions each scan line can be tagged to indicate
+  that it's the same as the last scanline - and encoding that scanline
+  is skipped. This drastically reduces the encoding time (by a factor
+  of about 2 on some images) although it doesn't typically save any
+  bytes. This is an option because some versions of jbig2dec (an open
+  source decoding library) cannot handle this.
+
+-p, --pdf
+  The PDF spec includes support for JBIG2 (Syntax->Filters->JBIG2Decode in
+  the PDF references for versions 1.4 and above). However, PDF requires
+  a slightly different format for JBIG2 streams: no file/page headers or
+  trailers and all pages are numbered 1. In symbol mode the output is to
+  a series of files: symboltable and page-n (numbered from 0). By default
+  these are named **output.sym** and **output.0000**, **output.0001**,
+  etc. Use *-b* to change the base filename.
+
+-s, --symbol-mode
+  Use symbol encoding. Turn on for scanned text pages.
+
+-t *threshold*
+  Sets the fraction of pixels which have to match in order for
+  two symbols to be classed the same. This isn't strictly true, as there are
+  other tests as well, but increasing this will generally increase the number
+  of symbol classes. Default is 0.85.
+
+-T *threshold*
+  Sets the black threshold (0-255). Any gray value darker than
+  this is considered black. Anything lighter is considered white.
+  Default is 188.
+
+-O *outfile*
+  Dump a PNG of the 1 bpp image before encoding. Can be used to
+  test loss.
+
+-2, -4
+  Upscale either two or four times before converting to black and
+  white.
+
+-S
+  Segment an image into text and non-text regions. This isn't perfect, but
+  running text through the symbol compressor is terrible so it's worth doing
+  if your input has images in it (like a magazine page).
+
+--image-output
+  Set filename to which the parts which were removed by -S are written.
+  Default is PNG format.
+
+-j, --jpeg-output
+  Write images from -S as JPEG instead of PNG.
+
+-a, --auto-thresh
+  Use automatic thresholding in symbol encoder.
+
+--no-hash
+  Disables use of hash function for automatic thresholding.
+
+-v
+  Be verbose.
+
+-V, --version
+  Display version number and exit.
+
+-h, --help
+  Display help and exit.
+
+EXIT STATUS
+===========
+
+**jbig2** exits with 0 (success) status if the conversion completed
+OK, and non-zero status if anything went wrong. If standard output was
+redirected to a file, the file will be empty or invalid when non-zero
+status is returned. Diagnostic messages are printed to standard error.
+
+COPYRIGHT
+=========
+
+See the file /usr/doc/jbig2enc-|version|/COPYING for license information.
+
+This software is a description of processes which may be patented.
+
+Use of this software may require patent licenses in some countries.
+You are directed to annex I of the JBIG2 specification for information.
+
+Some information could be found at:
+    http://www.jpeg.org/jbig/index.html
+    http://www.cl.cam.ac.uk/~mgk25/jbigkit/patents/
+    http://www.jpeg.org/public/fcd14492.pdf
+    http://itscj.ipsj.or.jp/sc29/open/29view/29n55161.doc
+
+AUTHORS
+=======
+
+jbig2 and jbig2enc were written by:
+  Adam Langley <agl@imperialviolet.org>.
+
+This man page written for the SlackBuilds.org project
+by B. Watson, and is licensed under the WTFPL.
+
+SEE ALSO
+========
+
+**pdf.py(1)**, **jbig2dec(1)**
+
+Full documentation for jbig2 and jbig2enc:
+  /usr/doc/jbig2enc-|version|/jbig2enc.html
+
+The JBIG2 specification was formerly located at:
+  http://www.jpeg.org/public/fcd14492.pdf
+
+A copy can be found here:
+  http://www.hlevkin.com/Standards/fcd14492.pdf
diff --git a/libraries/jbig2enc/jbig2enc.SlackBuild b/libraries/jbig2enc/jbig2enc.SlackBuild
new file mode 100644
index 0000000000..2ca4e2ecd3
--- /dev/null
+++ b/libraries/jbig2enc/jbig2enc.SlackBuild
@@ -0,0 +1,98 @@
+#!/bin/sh
+
+# Slackware build script for jbig2enc
+
+# Written by B. Watson (yalhcru@gmail.com)
+
+# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
+
+PRGNAM=jbig2enc
+VERSION=${VERSION:-0.28}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+TARNAM=$PRGNAM-$VERSION-dist
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $TARNAM
+tar xvf $CWD/$TARNAM.tar.gz
+cd $TARNAM
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+# taken from upstream git, fix compile with leptonica >= 1.70 (we
+# have 1.73). commit here:
+# https://github.com/agl/jbig2enc/commit/53ce5fe7e73d7ed95c9e12b52dd4984723f865fa
+patch -p1 < $CWD/leptonica_api_fix.diff
+
+# have to do this, configure.ac was patched above.
+autoreconf -if
+
+CFLAGS="$SLKCFLAGS" \
+CXXFLAGS="$SLKCFLAGS" \
+./configure \
+  --disable-static \
+  --enable-shared \
+  --prefix=/usr \
+  --libdir=/usr/lib${LIBDIRSUFFIX} \
+  --sysconfdir=/etc \
+  --localstatedir=/var \
+  --mandir=/usr/man \
+  --docdir=/usr/doc/$PRGNAM-$VERSION \
+  --build=$ARCH-slackware-linux
+
+make
+make install-strip DESTDIR=$PKG
+
+# man pages written for this SlackBuild, submitted upstream for
+# consideration.
+MANPAGES="jbig2 pdf.py"
+
+mkdir -p $PKG/usr/man/man1
+for i in $MANPAGES; do
+  gzip -9c < $CWD/$i.1 > $PKG/usr/man/man1/$i.1.gz
+done
+
+# docs already installed.
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}
diff --git a/libraries/jbig2enc/jbig2enc.info b/libraries/jbig2enc/jbig2enc.info
new file mode 100644
index 0000000000..dd83f20b91
--- /dev/null
+++ b/libraries/jbig2enc/jbig2enc.info
@@ -0,0 +1,10 @@
+PRGNAM="jbig2enc"
+VERSION="0.28"
+HOMEPAGE="https://github.com/agl/jbig2enc"
+DOWNLOAD="https://github.com/agl/jbig2enc/archive/0.28-dist/jbig2enc-0.28-dist.tar.gz"
+MD5SUM="34a22be7dedc77d22c8e3f43224e38a7"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES="leptonica"
+MAINTAINER="B. Watson"
+EMAIL="yalhcru@gmail.com"
diff --git a/libraries/jbig2enc/leptonica_api_fix.diff b/libraries/jbig2enc/leptonica_api_fix.diff
new file mode 100644
index 0000000000..ff36809052
--- /dev/null
+++ b/libraries/jbig2enc/leptonica_api_fix.diff
@@ -0,0 +1,37 @@
+diff --git a/configure.ac b/configure.ac
+index fe37c22..753a607 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -55,6 +55,7 @@ AC_CHECK_LIB([lept], [findFileFormatStream], [], [
+ 			echo "Error! Leptonica not detected."
+ 			exit -1
+ 			])
++AC_CHECK_FUNCS(expandBinaryPower2Low,,)
+ # test for function - it should detect leptonica dependecies
+ 
+ # Check for possible dependancies of leptonica.
+diff --git a/src/jbig2.cc b/src/jbig2.cc
+index e10f042..515c1ef 100644
+--- a/src/jbig2.cc
++++ b/src/jbig2.cc
+@@ -130,11 +130,16 @@ segment_image(PIX *pixb, PIX *piximg) {
+   // input color image, so we have to do it this way...
+   // is there a better way?
+   // PIX *pixd = pixExpandBinary(pixd4, 4);
+-  PIX *pixd = pixCreate(piximg->w, piximg->h, 1);
+-  pixCopyResolution(pixd, piximg);
+-  if (verbose) pixInfo(pixd, "mask image: ");
+-  expandBinaryPower2Low(pixd->data, pixd->w, pixd->h, pixd->wpl,
++  PIX *pixd;
++#ifdef HAVE_EXPANDBINARYPOWER2LOW
++    pixd = pixCreate(piximg->w, piximg->h, 1);
++    pixCopyResolution(pixd, piximg);
++    expandBinaryPower2Low(pixd->data, pixd->w, pixd->h, pixd->wpl,
+                         pixd4->data, pixd4->w, pixd4->h, pixd4->wpl, 4);
++#else
++    pixd = pixExpandBinaryPower2(pixd4, 4);
++#endif
++  if (verbose) pixInfo(pixd, "mask image: ");
+ 
+   pixDestroy(&pixd4);
+   pixDestroy(&pixsf4);
diff --git a/libraries/jbig2enc/pdf.py.1 b/libraries/jbig2enc/pdf.py.1
new file mode 100644
index 0000000000..38225effe8
--- /dev/null
+++ b/libraries/jbig2enc/pdf.py.1
@@ -0,0 +1,77 @@
+.\" Man page generated from reStructuredText.
+.
+.TH PDF.PY  "" "" ""
+.SH NAME
+pdf.py \- create PDF files from JBIG2 images
+.
+.nr rst2man-indent-level 0
+.
+.de1 rstReportMargin
+\\$1 \\n[an-margin]
+level \\n[rst2man-indent-level]
+level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
+-
+\\n[rst2man-indent0]
+\\n[rst2man-indent1]
+\\n[rst2man-indent2]
+..
+.de1 INDENT
+.\" .rstReportMargin pre:
+. RS \\$1
+. nr rst2man-indent\\n[rst2man-indent-level] \\n[an-margin]
+. nr rst2man-indent-level +1
+.\" .rstReportMargin post:
+..
+.de UNINDENT
+. RE
+.\" indent \\n[an-margin]
+.\" old: \\n[rst2man-indent\\n[rst2man-indent-level]]
+.nr rst2man-indent-level -1
+.\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
+.in \\n[rst2man-indent\\n[rst2man-indent-level]]u
+..
+.\" RST source for pdf.py(1) man page. Convert with:
+.
+.\" rst2man.py pdf.py.rst > pdf.py.1
+.
+.\" rst2man.py comes from the SBo development/docutils package.
+.
+.SH SYNOPSIS
+.sp
+jbig2 \-b newdoc \-s \-p image1.jpg image2.jpg ...
+.sp
+pdf.py newdoc > newdoc.pdf
+.SH DESCRIPTION
+.sp
+\fBpdf.py\fP creates a PDF document from \fBjbig2\fP\(aqs PDF\-ready output
+(created using \fI\-s\fP and \fI\-p\fP, \fI\-\-pdf\fP).
+.sp
+\fBpdf.py\fP takes only one argument: the base name of the files created
+by \fBjbig2\fP, which is set with \fBjbig2\fP\(aqs \fI\-b\fP option.  Without \fI\-b\fP,
+the default name is \fBoutput\fP\&.
+.sp
+The PDF is written to standard output, which normally should be redirected
+to a file (see the example above).
+.SH EXIT STATUS
+.sp
+\fBpdf.py\fP exits with 0 (success) status if the conversion completed
+OK, and non\-zero status if anything went wrong. If standard output was
+redirected to a file, the file will be empty or invalid when non\-zero
+status is returned. Diagnostic messages are printed to standard error.
+.SH COPYRIGHT
+.sp
+See the file /usr/doc/jbig2enc\-0.28/COPYING for license information.
+.SH AUTHORS
+.INDENT 0.0
+.TP
+.B pdf.py and jbig2enc were written by:
+Adam Langley <\fI\%agl@imperialviolet.org\fP>.
+.UNINDENT
+.sp
+This man page written for the SlackBuilds.org project
+by B. Watson, and is licensed under the WTFPL.
+.SH SEE ALSO
+.sp
+\fBjbig2(1)\fP, \fBjbig2dec(1)\fP
+.\" Generated by docutils manpage writer.
+.
diff --git a/libraries/jbig2enc/pdf.py.rst b/libraries/jbig2enc/pdf.py.rst
new file mode 100644
index 0000000000..6b4cb623a2
--- /dev/null
+++ b/libraries/jbig2enc/pdf.py.rst
@@ -0,0 +1,61 @@
+.. RST source for pdf.py(1) man page. Convert with:
+..   rst2man.py pdf.py.rst > pdf.py.1
+.. rst2man.py comes from the SBo development/docutils package.
+
+.. |version| replace:: 0.28
+.. |date| date::
+
+======
+pdf.py
+======
+
+----------------------------------
+create PDF files from JBIG2 images
+----------------------------------
+
+SYNOPSIS
+========
+
+jbig2 -b newdoc -s -p image1.jpg image2.jpg ...
+
+pdf.py newdoc > newdoc.pdf
+
+DESCRIPTION
+===========
+
+**pdf.py** creates a PDF document from **jbig2**'s PDF-ready output
+(created using *-s* and *-p*, *--pdf*).
+
+**pdf.py** takes only one argument: the base name of the files created
+by **jbig2**, which is set with **jbig2**'s *-b* option.  Without *-b*,
+the default name is **output**.
+
+The PDF is written to standard output, which normally should be redirected
+to a file (see the example above).
+
+EXIT STATUS
+===========
+
+**pdf.py** exits with 0 (success) status if the conversion completed
+OK, and non-zero status if anything went wrong. If standard output was
+redirected to a file, the file will be empty or invalid when non-zero
+status is returned. Diagnostic messages are printed to standard error.
+
+COPYRIGHT
+=========
+
+See the file /usr/doc/jbig2enc-|version|/COPYING for license information.
+
+AUTHORS
+=======
+
+pdf.py and jbig2enc were written by:
+  Adam Langley <agl@imperialviolet.org>.
+
+This man page written for the SlackBuilds.org project
+by B. Watson, and is licensed under the WTFPL.
+
+SEE ALSO
+========
+
+**jbig2(1)**, **jbig2dec(1)**
diff --git a/libraries/jbig2enc/slack-desc b/libraries/jbig2enc/slack-desc
new file mode 100644
index 0000000000..657cfc1d60
--- /dev/null
+++ b/libraries/jbig2enc/slack-desc
@@ -0,0 +1,19 @@
+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+        |-----handy-ruler------------------------------------------------------|
+jbig2enc: jbig2enc (encoder for JBIG2)
+jbig2enc:
+jbig2enc: JBIG2 encodes bi-level (1 bpp) images using a number of clever tricks
+jbig2enc: to get better compression than G4.
+jbig2enc:
+jbig2enc: The package includes shared libraries, headers, docs, and the jbig2(1)
+jbig2enc: command-line conversion tool.
+jbig2enc:
+jbig2enc:
+jbig2enc:
+jbig2enc: