Flameeyes's scan2pdf

This is a simple script that works as a frontend to scanimage(1)
from the SANE project, to scan a number of pages from a compatible
device into one or more PDF documents.

Prerequisites

• sane-backends (>= 1.0.22
  recommended, for scanimage -A)
• posix-spawn (tested with 0.3.6)
• libtiff utilities
• netpbm (a note for Gentoo users: you need both tiff and jpeg
  USE flags enabled for the pnm2tiff utility.)
• ImageMagick or GraphicsMagick
• unpaper
• inifile (>= 2, optional, for
  configuration file support.)

The configuration file

Some device always require the same parameters to be passed, because
they are either center-based scanning, or ADF-only. Some other time
you might want for them to use a different resolution by default, or
not to use unpaper.

In these cases you can configure scan2pdf to provide those
options. The configuration file is a key-value pair file (.ini file)
and it resides in ${XDG_CONFIG_HOME}/eu.flameeyes.scan2pdf (which by
default on Linux system is ~/.config/eu.flameeyes.scan2pdf).

The configuration file uses a [defaults] section, which only has one
key (device), and then one section for device. Note that device name
is not matched against the names reported by scanimage, but rather
against the value of the --device option passed to scan2pdf. It is
suggested to provide a default device when using the configuration
file.

The key names within the device sections are the same as the
parameters passed to scan2pdf without the two leading dashes.