I have a PDF file containing hundreds of BW scannings, that I created on Windows using lossy JBIG2 compression, resulting in a nice 8MB file.
I can open that file on OSX with Preview, but if I add any comment or annotation and save the file, the resulting size is 120MB. If I make the same annotation with Acrobat Reader, the resulting file size is 8MB.
I guess the problem is that Preview saves the BW images using CCITT compression, which has a worse compression ratio. Am I correct? Are there any workarounds for this?
I'm using OS X Mountain Lion, latest update.