A program to resize image size by an integer factor, deleting bits when scaling down and duplicating bits when scaling up.
Verbose mode (show progress). Enables printout of running scan lines.
Specifies the exact screen dimension of the output GIF.
Set scaling factor for both x & y direction to Scale. Default is 0.5. Note this is a floating point number.
Set scaling factor for x direction to Scale. Default is 0.5. Note: this is a floating point number.
Set scaling factor for y direction to Scale. Default is 0.5. Note: this is a floating point number.
Print one line of command line help, similar to Usage above.
If no GIF file is given, gifrsize will try to read a GIF file from stdin.