I tried the solution given in another message to change the doc to BITMAP mode and greyscale. When I open the file to work on it, CS2 says its CMYK / 8 bit. Is the file truly 1 bit depth? Our scanning software won't allow the creation of templates on any other color depth.
#1
If you save a Bitmap mode image, you'll get a 1 bit TIFF.
#2
I don't think so. A 100x100 pixel image, converted by
Grayscale > Bitmap > Save as Tiff
delivers 26 kBytes. If each image bit were packed into
one file byte, then we would get 10000 bytes.
The same image converted by
Grayscale > Bitmap > Save as Windows BMP > 1 bit depth delivers 1.6 kBytes
which is just a little more (because of the header) than the image content 100 x 100 / 8 = 1250 bytes.
Best regards --Gernot Hoffmann
#3