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As an open source project, Netpbm has been written and otherwise supported by
myriad people from all over. Most of them have made isolated contributions
such as a single program, a single new feature, or a single bug fix. To save
clerical effort, we do not list them here and instead refer you to the HISTORY
file. This file lists people who have made broad contributions that wouldn't
be well summarized by the HISTORY file.
Jef Poskanzer had the original idea for what is now Netpbm and wrote dozens of
programs and the original library code, as well as inventing and designing the
PNM formats and writing documentation. Jef's code contributions stopped in
1991 and because of rewrites, there is not much of Jef's code still remaining,
with what does remain being mostly obsolete. Nonetheless, the impact of that
original code is enormous, as everything in Netpbm today is derived in some
way from Jef's work.
Bryan Henderson has been maintaining Netpbm since 1999 and has written more
code, in lines, than anyone else. Most of that is just rewriting old code in
a more maintainable style. But Bryan has also fixed more bugs than anyone,
since the normal bug reporting procedure is to tell the maintainer, and Bryan
normally fixes bugs reported that way himself. Bryan has also added many
features and whole programs at the suggestion of users. Bryan has written
most of the documentation, whether by writing manuals for programs whose
authors declined to do so or by rewriting manuals to make them more clear when
users had trouble using Netpbm.
Akira F Urushibata has made myriad contributions since 2004. Much of the PBM
processing code is his, as he rewrote existing programs to be much faster, in
particular by using special bit-processing machine instructions. He also
created the entire test framework and regression test suite and runs those
regression tests and other tests regularly, and often develops fixes for the
bugs found. Nobody else has done significant alpha testing of Netpbm except
where developers have done it to test code they just wrote. This testing has
turned up many bugs in code going all the way back to 1989.
Scott Pakin has contributed numerous programs over the years including the
fairly significant work 'pamstereogram'.
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