How do you extract color profiles from a PDF file using pdfbox (or other open source Java lib) -


once you've loaded document:

public static void main(string[] args) throws ioexception {     pddocument doc = pddocument.load(new file("blah.pdf"));

how page page printing color intent pddocument? read docs, didn't see coverage.

this gets output intents (you'll these high quality pdf files) , icc profiles colorspaces , images:

    pddocument doc = pddocument.load(new file("xxxxx.pdf"));     (pdoutputintent oi : doc.getdocumentcatalog().getoutputintents())     {         cosstream destoutputintent = oi.getdestoutputintent();         string info = oi.getoutputcondition();         if (info == null || info.isempty())         {             info = oi.getinfo();         }         inputstream = destoutputintent.createinputstream();         fileoutputstream fos = new fileoutputstream(info + ".icc");         ioutils.copy(is, fos);         fos.close();         is.close();     }     (int p = 0; p < doc.getnumberofpages(); ++p)     {         pdpage page = doc.getpage(p);         (cosname name : page.getresources().getcolorspacenames())         {             pdcolorspace cs = page.getresources().getcolorspace(name);             if (cs instanceof pdiccbased)             {                 pdiccbased icccs = (pdiccbased) cs;                 inputstream = icccs.getpdstream().createinputstream();                 fileoutputstream fos = new fileoutputstream(system.currenttimemillis() + ".icc");                 ioutils.copy(is, fos);                 fos.close();                 is.close();             }         }         (cosname name : page.getresources().getxobjectnames())         {             pdxobject x = page.getresources().getxobject(name);             if (x instanceof pdimagexobject)             {                 pdimagexobject img = (pdimagexobject) x;                 if (img.getcolorspace() instanceof pdiccbased)                 {                     inputstream = ((pdiccbased) img.getcolorspace()).getpdstream().createinputstream();                     fileoutputstream fos = new fileoutputstream(system.currenttimemillis() + ".icc");                     ioutils.copy(is, fos);                     fos.close();                     is.close();                 }             }         }     }     doc.close();

what doesn't (but add of if needed):

  • colorspaces of shadings, patterns, xobject forms, appearance stream resources
  • recursion in colorspaces devicen , separation
  • recursion in patterns, xobject forms, soft masks

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