I have a pdf file which has images compressed using jpeg2000 compression. The iPad can't display these images in the pdf. Is there a free utility to convert the pdf file to a pdf version where all the images do not use jpeg2000 compression? Looking for a quick solution as in open pdf file, change some setting, save as ..
I'm giving this advice with all reservations, since I currently don't have a way to verify it...
However, what I'm sure about: Ghostscript does support JPEG2000 compression of images (but you may need to specifically build it that way; see http://svn.ghostscript.com/ghostscript/trunk/gs/doc/Make.htm).
Now, what I'm not sure about: there is this
If it works as I think it does, a JPEG2000-enabled Ghostscript build would read your problematic PDF in without error, and write the output PDF with pictures using flate compression instead of JPEG2000.
UPDATE: Found out some additional pieces of info.
[*] Reason: There is no support for creating JPEG2000 images, because the encoder costs money to licence (and it is patent encumbered, so it is risky to write an own implementation).
This means you should not even need to add the
If you have a Mac, it is as easy as opening the file in Preview and saving it. Saved PDF is usualy 5 times bigger or so, but without JPEG200 compression.
For those with a Windows PC and no access to a Mac:
The resulting output should display properly on iOS devices.