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  1. PDFBox
  2. PDFBOX-4022

Cache ColorSpace instances in PDColorSpace.java

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.7, 2.0.8
    • Fix Version/s: 2.0.9, 3.0.0 PDFBox
    • Component/s: Rendering
    • Labels:
    • Environment:
      Windows 10
    • Flags:
      Patch

      Description

      I have a PDF which contains a lot of Images. Each time, pdfbox parse the image it uses the colorspace to parse it and most of the time colorspace is the same object. I tried to cache the colorspace instances in PDColorSpace.java as shown in the attached patch. For this particular PDF, this change improves the performance of parsing and rendering the images from 15 minutes down to 3 minutes. I shared the PDF.

        Attachments

        1. PDColorSpace.java.patch
          2 kB
          savan patel
        2. selection.pdf
          5.61 MB
          savan patel

          Activity

            People

            • Assignee:
              tilman Tilman Hausherr
              Reporter:
              savan savan patel
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              Dates

              • Created:
                Updated:
                Resolved: