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1. Re: Will saving jpeg in PSD, tiff or eps avoid lossy effect?
Chris Cox Sep 4, 2011 2:19 PM (in response to emilycornfield)The loss for JPEG happens when it is saved. So yes, to keep the quality you have: save it as a non-lossy format like PSD or TIFF.
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2. Re: Will saving jpeg in PSD, tiff or eps avoid lossy effect?
Vikingnm Sep 6, 2011 9:55 AM (in response to emilycornfield)That sounds odd...once you place a JPEG into a PSD file it becomes part of that PSD so it's a lossy format...
you can save a .psd as a JPEG format by accident (it's really a JPEG but with a psd extention) so try a save as and make sure it's saving as a PSD or TIF (got burned a couple times on that one )
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3. Re: Will saving jpeg in PSD, tiff or eps avoid lossy effect?
Chris Cox Sep 6, 2011 11:14 AM (in response to Vikingnm)Vikingnm - um, no. JPEG is the file format. Once that image is saved as PSD, it's a PSD file. There is no trace of it's JPEG past, no lossy saving, nothing. You have to explicitly save it as a JPEG file again to get another JPEG file.
It is not "really a JPEG but with a psd extention", unless you simply changed the file extension -- which is NOT the same thing as saving the image as a PSD file.
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4. Re: Will saving jpeg in PSD, tiff or eps avoid lossy effect?
Vikingnm Sep 6, 2011 12:48 PM (in response to Chris Cox)sorry what I was refering to was the extention of the file...if you select JPEG as the file format in the save dialog box it is possible to accidentially click on a file with a PSD extention and hit save...on the Mac side of things it appears in the finder as a psd due to the extention but is actually a JPEG...i've done this a few times by mistake.
-do a save as
-select JPEG as the file format
-click a .psd in that folder which changes the entire name including the extention...if your not paying attention it will save/replace over that clicked psd
the file is then a JPEG but with a PSD extention...i've destroyed a few original PSDs by doing this
the only remodys are
-not be a clutz like me and click a file in the dialog box
-choose your file format as the last thing (this makes it the correct extention)
-change the extention in the file name box
*update*
I just did a quick test and it appears the new update to CS5 fixes this, CS4 still does it though so it's more an FYI for those with the older version
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5. Re: Will saving jpeg in PSD, tiff or eps avoid lossy effect?
c.pfaffenbichler Sep 6, 2011 11:16 PM (in response to Chris Cox)There is no trace of it's JPEG past, no lossy saving, nothing.
If I’m not mistaken one possibility would be placing a jpg as a Smart Object and subsequently editing and saving it, which could cumulate jpg-deterioration.


