When I take a JPG and use "save as..." then select 'options' I can't seem to change the file size manually. When the options window opens after I do save as, I go through the regular process of using the slider to change the percentage of quality. I can see in the upper right-hand corner the file size changes. I click 'OK' and then save in the next window and I wind up with the file in the same original size, as if I hadn't changed the percentage. Am I forgetting something...I know 'save as...' in Lion/Mountain Lion is not a default setting, but Export doesn't give me the options I want. Also renaming the file, moving it to another place, none of those things enable to me to save a file with the reduced file size.
Thanks in advance!
I think you're running into a known Fireworks bug, where options specified by a user within the Save As options dialog are overridden by settings already specified within the Optimize panel or Image Preview dialog. This is typically only a problem when the files being saved/exported are of the same type—e.g., using Save As to create a JPEG from an existing JPEG, or a PNG with transparency from an existing PNG.
Have a look at this forum post and thread for more info:
You should have better luck if you Export the file using File > Image Preview. This brings up the same dialog as the Save As options, but your settings, in this case, will be honored.
You can submit your own bug report on this issue here: https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform