[Leaplist] Compresseing a file

Jim Hartley xjimh at cfl.rr.com
Sun Nov 23 17:00:46 EST 2008


I wouldn't use XCF if I wanted to compress something, XCF files are 
**HUGE**. For experimenting with various compression techniques, save 
the file as BMP (bitmap), which has all the pixels and almost no 
overhead. Then try all the programs like ZIP, GZIP, BZIP, and any others 
you can think of, and you will get varying amounts of lossless 
compression. Pick the best and use it.

Note, however, that different pictures may may compress better with 
different programs ... a "busy" picture may compress differently than 
one with big solid-color areas.

Jim Hartley

tom foster wrote:
> I would save it as an xcf (gimp native format) then
> experiment with other formats, png, for instance.  is png
> lossy?
> 

-- 
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