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                                                348
CHAPTER 4                                                                                   Graphics



Example 4.29

  10 0 obj                                        % Image XObject
      << /Type /XObject
         /Subtype /Image
         /Width 100
         /Height 200
         /ColorSpace /DeviceGray
         /BitsPerComponent 8
         /Alternates 15 0 R
         /Length 2167
         /Filter /DCTDecode
      >>
  stream
  … Image data …
  endstream
  endobj

  15 0 obj                                        % Alternate images array
     [ << /Image 16 0 R
           /DefaultForPrinting true
       >>
     ]
  endobj

  16 0 obj                                        % Alternate image
      << /Type /XObject
         /Subtype /Image
         /Width 1000
         /Height 2000
         /ColorSpace /DeviceRGB
         /BitsPerComponent 8
         /Length 0                                % This is an external stream
         /F << /FS /URL
                 /F ( http : / / www . myserver . mycorp . com / images / exttest . jpg )
            >>
         /FFilter /DCTDecode
      >>
  stream
  endstream
  endobj

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