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IPTC editing lossless?
Posted: Sat Jan 08, 2005 12:02 am
by spankee
Hi! does XnView support lossless editing?
Thanks
Posted: Sat Jan 08, 2005 12:49 am
by Olivier_G
IPTC data are metadata that are added "along" the image and embedded in the file. It shouldn't affect the image part at all...
Just to be quite sure
, I used imagemagick "identify -verbose" to check that the Signature (ie: checksum) of the image was the same before and after IPTC creation/edition (I used all fields). Results => Same-Same...
So yes: XnView does support lossless editing (just as it should be).
Olivier
Posted: Mon Jan 10, 2005 8:27 pm
by Guest
Great! Thanks for testing that!
Re: IPTC editing lossless?
Posted: Sun May 24, 2009 2:29 am
by marsh
The browser's compare tool displays equal crc also (interesting to me because it shows that the image data is being checked (unlike a typical archiver which uses the whole file).