I received a picture file from a friend who complained that she could not reduce it from a 14 mb 16-bit Prophoto RGB file, 1298x1699 pixels,
to a Jpeg of about 500kb. I downsampled the file to782x1024 pixels, 8-bits and sRGB, saved it as a Tiff, and then converted it to a Jpeg. Even with the quality slider at 0, the size of the Jpeg was over 1.5mb!
I gave the file to several knowledgeable friends who found the same dificulty. I suspect there is something wrong with the original Tiff (It is one layer, labeled "Background." I even tried duplicating layers and reflattening them, as well as trying to export a duplicate layer to its own file, but the problem persists.
2 questions:
1) Would somebody here like to play with the file and figure out why this is happening? and,
2) How could I attach the 14mb file on a LuLa post so people could give it a try?