I really don't know much about this but......
-Can you extract each image and replace it with something else? (another image)?
If the answer to this is yes try extracting just the first few images.
See if they come out as j-peg files.
-If the answer to this is also yes,
-Open one of those images in a graphics/image editor. (One that will handle j-peg images).
-Don't actually edit anything, jut do a Save-as, when the save dialog box pops up
you will *most likely* be able to select the file type.
-Again choose j-peg.
-At this point you will hopefully (either in the same save dialog or a new dialog may open up) be able to choose the compression.
-Try selecting something around 50% and finish the save process.
-Once the compressed version is saved, try opening that one up in an image viewer and see if the resolution of the new version is acceptable.
-Finally take a look at the file size of the new image. Compare that to the file size of the original image. Is there substantial size saving in that one file? If you assume that as an average savings and and multiply that out across the number of images you have, would the total savings get the module down to a size that is reasonable for you? You'll just have to try a small test and see how it turns out.
As far as *free* image editors go, the GIMP will do this.
Commercial (pay for) programs, I would most likely try Adobe's Light_Room (LR). The thing about LR is, if you record (like a macro) the adjustments you make, LR will apply those same changes across all of the images you select.
Well, I hope some of this at least sparks a few ideas for you to follow up on.
Roy
Edited by Roy, 03 July 2013 - 11:04 PM.
