OK thanks, I guess it's me being overly judgemental of my design or something. Thanks for the help.
On 5 June 2017 at 14:36, Tilman Hausherr <[email protected]> wrote: > Hi, > > I did the comparison that I mentioned and the renderings are identical. I > do see a slight difference in your dropbox images but this goes away when > moving my head, i.e. the difference is due to screen angle. > > Colorspaces can appear at many places, in the content stream, in images, > shadings, resources... I had a quick look at your file with PDFDebugger > and it uses ICC colorspaces. > > Tilman > > > Am 05.06.2017 um 13:49 schrieb Derwent Ready: > >> Hi, >> >> Thanks for the quick response. I just tried your code and put the outputs >> from Indesign, Photoshop RGB/CYMK, PDFBox default and PDFBox using the >> SWOP >> profile next to each other and yes there is definitely a difference so >> thanks for that. :) >> The SWOP is definitely closer to the Photoshop versions than the PDFBox >> default. This is more noticeable on one set of images than another. >> >> I've linked a couple of images in a dropbox link that show the >> differences. >> On the first image (purple) the difference is minimal but on the second >> (orange) the gradients are really quite different. I'm not sure if this is >> a PDFBox issue or a profile issue or what. >> https://www.dropbox.com/sh/e80qn8qa2s2ad56/AAA0qKuhAjXeP0e2Qe2AXmFea?dl=0 >> >> How would I check that the file has DeviceCYMK colourspace? I've included >> a >> blank version of the PDF in the dropbox folder. >> >> Thanks again, >> >> D >> >> On 5 June 2017 at 10:40, Tilman Hausherr <[email protected]> wrote: >> >> Here's what worked for me, I used it in my rendering tests which detect >>> differences: >>> >>> PDDeviceCMYK.INSTANCE = new PDDeviceCMYK() >>> { >>> @Override >>> protected ICC_Profile getICCProfile() throws IOException >>> { >>> return ICC_Profile.getInstance("USWebCoatedSWOP.icc"); >>> } >>> }; >>> >>> The results are definitively different. >>> >>> If you have a test file, I could render it with and without the change >>> and >>> check whether it is different or not. Maybe your file doesn't have the >>> /DeviceCMYK colorspace but something else? >>> >>> Tilman >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: [email protected] >>> For additional commands, e-mail: [email protected] >>> >>> >>> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > >
