Hi there,
I need help in retouching a group of photos in Photoshop CS.
I mean how can I manipulate a photo that cames from an Olympus Digital Camera, without losing additional color space information after retouching.
The original photos are in JPG format and have many additional headers embedded in the image that store infos about the shot parameters and so on, such as sRGB colorspace etc...
When I just move a pixel in the image in photoshop if I choose to "Save" the image, then the requester for choosing compression comes up but this usually doesn't happen if I use images that does not have this info headers added.
Saving the image all the additional headers disappear and instead new Photoshop Headers appear.
How can I avoid loosing this information and maybe color space information ( I'm not sure ) while continuing to manipulate them in photoshop ?
The Images after the retouch must be taken to a Photo lab to be printed.
They adviced me not to manipulate them to avoid loosing color information and other things, instead they can manipulate them safely in photoshop for additional cost per photo.
Obviously this is not what I want, I'm good at retouching photo

even if usually they remain in the digital format so I don't know what I should do if the images have to be printed.
Suppose you have a jpg file of an image from a shot made with a digital camera that use Epson Image Printing technology for example.
How do you print the image for example with an Epson Stylus photo 895 that support this feature after you have retouched the photo in photoshop and all these info needed for the technology above may have been discarded ?
What I mean is what should be the correct workflow in photoshop to avoid loosing any additional data and being sure that the corrections adopted in the retouch would be safe as those made by the photo lab ?
If anyone can help me explaining me the correct workflow It would be very nice.
Thanx in advance,
Jinxius.