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gifflip

A program to flip (mirror) GIF file along X or Y axes, or rotate the GIF file 90 degrees to the left or to the right.

Usage:

gifflip [-q] [-r] [-l] [-x] [-y] [-h] gif-file
If no gif-file is given, GifFlip will try to read a GIF file from stdin.

Memory required:

Image.

Options:

[-q]
Quiet mode. Default off on MSDOS, on under UNIX. Controls printout of running scan lines. Use -q- to invert.

[-r]
Rotate the GIF file to the right.

[-l]
Rotate the GIF file to the left.

[-x]
Mirror the GIF file along the X axis. Very useful if GIF file was created from another format in with the first line in at image bottom. Effectively exchanges first row with last.

[-y]
Mirror the GIF file along Y axis. Effectively exchanges first column with last.

[-h]
Print one line of command line help, similar to Usage above.

Author:

Gershon Elber
Eric S. Raymond <esr@snark.thyrsus.com>