> It was 16/11/04 4:41 pm, when David Riecks wrote: > > > From a conversation I had with Marc Pawliger at PhotoPlus in 2003, my > > understanding is as follows. > > > > If the Jpegging was done within photoshop, and you chose to "SAVE" > > (not save as) the image, and only metadata was changed, then there > > will be no recompression of the image data.
Shangara writes ... > While it's possible I made a mistake when I did some testing this > morning,Michael also came to the same conclusions using a slightly > different way of comparing. > > I know Marc knows his biscuits but what he said doesn't seem to square (I > have heard the same thing said before on other lists and it seems to make > perfect sense). However, our testing showed JPEGs saved from Photoshop, > metadata removed and saved again using File < Save showed some > recompression. I need admit being under the same impression as was David ... but a simple test and comparing with the dupe certainly changed my impression. (I'm still using PS6, and I did a simple save (close & re-open) after inserting a very simple change into the "image information" tags.) If what Marc stated is true, then it is for a very specific operation which eludes me(?) cheerios ... shAf :o) Avalon Peninsula, Newfoundland www.micro-investigations.com (in progress) =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
