The reason I didn't want compression is as follows: * My external Tiff image (96dpi, Bit-depth: 16, Compression: Uncompressed) wasn't rendering correctly, so I thought a possible reason could be compression * The next possible reason could be something about color profiles, which was the motivation for my other thread
So the basic issue is that a grayscale image appears incorrectly in pdf (it appears washed out, lower contrast, more noisy) and I don't know what the cause is, and the above were the potential reasons that came to mind. 2014-01-29 Luis Bernardo <lmpmberna...@gmail.com> > > Note that the images use compression internally. If the image loader > selected by FOP to process your image is the default ImageIO one (i.e., not > a native FOP image loader) the image will be uncompressed. If then you turn > off PDF stream compression, then yes, you should end up with a much larger > file. > > Maybe you can explain why you do not want compression? > > > On 1/28/14, 1:10 PM, Valentina Cupac wrote: > > Thanks! > > I wasn't exactly sure what should be configured in the pdf rendering > settings. (The goal is to have no compression applied to tiff images which > are included in pdf output), so I tried some possible changes, listed below. > > My raw images are about 200KB. > The generated pdf file (images - tiff, png + a bit of text) is 3MB. > > The good thing is that now the images are not compressed (I'm assuming > that occurs since the pdf is now larger, the effect comes from here: > <filterList > type="image"><value>null</value></filterList> > > However, the interesting part is that the pdf file is now much larger > than the size of the original images. Is this an expected effect? > > > === Current configuration === > > <renderer mime="application/pdf"> > <filterList> > <!-- provides compression using zlib flate (default is on) --> > <value>flate</value> > > <!-- encodes binary data into printable ascii characters (default > off) > This provides about a 4:5 expansion of data size --> > <!-- <value>ascii-85</value> --> > > <!-- encodes binary data with hex representation (default off) > This filter is not recommended as it doubles the data size --> > <!-- <value>ascii-hex</value> --> > </filterList> > > > === ATTEMPTED CONFIGURATION === > > <renderer mime="application/pdf"> > <filterList> <value>flate</value> </filterList> <filterList > type="image"> <value>null</value> </filterList> > > > > Could you let me know if there are any other settings I could try > > > 2014-01-28 Registar Man <szea...@gmail.com> > >> Hi! >> >> The image/tiff renderer configuration settings only works when you >> generate tiff output not pdf. >> For PDF rendering settings you must configure in the pdf renderer section. >> >> Bye, Csaba >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org >> For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org >> >> > >
