Hi Ken, I'm just repeating what others have said. I'm far from an expert on the subject, but, iirc, John and others made a good case for the point that image degradation does not always occur when saving a JPEG, as noted in my post below. Is John correct? Are you correct? I don't know. I'm not an expert. Didn't even land the role to play one on TV <LOL>
As to why *I* would resave if the file was just opened for viewing - if you meant me specifically rather than that generic "you" - well, I wouldn't, not intentionally, anyway. But there are many instances when *someone* might - I've certainly done so unintentionally. There's the scenario where a file may be opened and the viewewr wants to save it to another folder, or to a disk or CD, and may choose to use the save command rather than the copy command. Or maybe just hit the save button out of habit. The point, of course, isn't WHY someone might do this, but what happens when it's done: does the image degrade? Shel > [Original Message] > From: Kenneth Waller <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Date: 11/13/2004 9:22:15 AM > Subject: Re: Reducing File Size with Photoshop > > Shel, > after you open a jpeg, & then resave it as a jpeg, whether you have made any > changes or not, you are causing more losses to the file. Why would you > resave if you just opened it up and viewed it? > > > Kenneth Waller > > ----- Original Message ----- > From: "Shel Belinkoff" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Saturday, November 13, 2004 10:10 AM > Subject: Re: Reducing File Size with Photoshop > > > > We had a discussion about this some time ago, and a couple of people (John > > Francis comes to mind as one) suggested that this is not always the case, > > and that degradation of image quality takes place only in certain > > circumstances. My recollection is that if a JPEG has not been changed, > but > > just opened for vieweing and then saved, there is no image degradation. I > > also seem to recall that if only a small area has been changed, such as > > making an adjustment to one feature in the image, only that portion which > > has been adjusted suffers. This seems like a good time to clear this up
