Tilman Hausherr created PDFBOX-4150:
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             Summary: Optimize clipping text rendering modes
                 Key: PDFBOX-4150
                 URL: https://issues.apache.org/jira/browse/PDFBOX-4150
             Project: PDFBox
          Issue Type: Improvement
          Components: Rendering
    Affects Versions: 2.0.8
            Reporter: Tilman Hausherr
            Assignee: Tilman Hausherr


I noticed that the file from PDFBOX-2035 needs 210 seconds on my new PC. The 
profiler shows that much time is lost in {{pruneEdges}}. A google search hit 
the linked SO issue. So I changed PageDrawer. Times on new PC with energy 
setting to maximum:
 - PDFBOX-1350: 53 secs before, 12 secs after
 - PDFBOX-2035: 210 secs before, 9 secs after
 - all tests: 424 secs before, 247 secs after (the difference is mostly because 
of PDFBOX-2035 which prevents termnination of the test)
 - all tests except the two: 246 secs before, 230 secs after



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