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Question about what Distructive tools are in CS5 Photoshop?


13 years 5 days ago #47007 by Jerry Curtin
Anyone happen to know what tools are considered "destructive" in CS5 Photoshop? I'm teaching myself how to use and know some of these can mess up things. When you save a file are you making 2 copies of the image? One saved as the PSD file and one as the finished JPG?
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13 years 5 days ago #47075 by FMVPhotography
I'm really really not an expert in this at all - in fact I don't even use Photoshop I use Paint Shop Pro Photo - but from what I was taught in college during your work flow you should always save the original (RAW? if using it) untouched image, then convert to a 'lossless' file format ie TIFF not JPEG. Edit and then save the TIFF and then save an additional as JPEG. I guess if you use layers you should also be saving a PSD copy which keep the layer integrity.

Obviously this starts taking up huge amounts of spage per image - I guess it depends what you are planning to do with the files.....
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13 years 5 days ago #47097 by Baydream

FMVPhotography wrote: I'm really really not an expert in this at all - in fact I don't even use Photoshop I use Paint Shop Pro Photo - but from what I was taught in college during your work flow you should always save the original (RAW? if using it) untouched image, then convert to a 'lossless' file format ie TIFF not JPEG. Edit and then save the TIFF and then save an additional as JPEG. I guess if you use layers you should also be saving a PSD copy which keep the layer integrity.

Obviously this starts taking up huge amounts of spage per image - I guess it depends what you are planning to do with the files.....

Congratulations. You win. Any time software permanently changes an image, it is considered destructive. That's way you always save a copy of the RAW file and work on the copy. uAn additional safety is to save in the PSD format (or pspimage format for us Corel fans) to avoid losing data.
If you start in jpeg, save your intermediates in Tiff so as not to lose data, then save back to jpeg for printing.
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Picasa is interesting in that it uses nondestructive edits for jpegs UNTIL you save (the edits are applied in sort of layers and can be backed out one by one. Since this does not compress until you save, the editing is referred to as non-destructive.
Whew.
Shoot, learn and share. It will make you a better photographer.
fineartamerica.com/profiles/john-g-schickler.html?tab=artwork
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The following user(s) said Thank You: FMVPhotography
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13 years 5 days ago #47133 by Joves
Well I always save all of my altered photos as copies in Jpeg then the original is still there untouched in its file.
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13 years 3 days ago - 13 years 3 days ago #47860 by Henry Peach
Almost any Photoshop tool can be used in a destructive or nondestructive manner. If it makes a permanent change that can't be reversed at a later time that's destructive. Try to use an adjustment layer rather than directly altering your original. You might also want to study up on smart objects.

Lightroom and Adobe Camera Raw automatically apply processing adjustments as adjustment layers until the photo is exported.
mattneedham.zenfolio.com
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13 years 3 days ago #47866 by Henry Peach
While it may be a good idea to have a back up, you don't need to work on a copy of the raw file as the processing recipe is listed in a sidecar file. The original raw file remains unchanged. When you call up the raw file the raw processing software just applies the processing saved in the sidecar file, but you can reverse or adjust the processing at any time.
mattneedham.zenfolio.com
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