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gd is a graphics library. It allows your code to quickly draw images
complete with lines, arcs, text, multiple colors, cut and paste from
other images, and flood fills, and write out the result as a PNG or JPEG
file. This is particularly useful in World Wide Web applications, where
PNG and JPEG are two of the formats accepted for inline images by most
browsers.
gd does not provide for every possible desirable graphics operation.
It is not necessary or desirable for gd to become a kitchen-sink
graphics package, but version 2.0 does include most frequently requested
features, including both truecolor and palette images, resampling
(smooth resizing of truecolor images) and so forth.
AUTHOR
gd was written by Thomas Boutell and is currently distributed by
boutell.com, Inc.
WWW: http://www.boutell.com/gd/
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