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Friday, 24 January 2020

Oracle Reports: REPORTS_GRAPH_IMAGE_DPI

REPORTS_GRAPH_IMAGE_DPI

Description This environment variable specifies a dots per inch (DPI) value for graphs output to a PDF file or a printer. The default value for this environment variable is set at 72 DPI to minimize the time taken to generate the report as well as to reduce the report file size.
If you specify a value higher than 72 DPI, you will see an improvement in the image resolution for graphs sent to a PDF file or a printer. However, this affects the time taken to generate the report output as well as the file size.

Note:
With the value of REPORTS_GRAPH_IMAGE_DPI=250:
  • The time taken to generate a report with a graph increases 5 to 6 times when compared to the time taken to generate the same report with the value set to 72 DPI.
  • The PDF file size also increases 5 to 6 times.
Valid Values  72 through 300
Default  72
Usage Notes

  • On Windows, use the registry to specify the value. On Unix/Linux, set the environment variable in reports.sh.
  • When you set a higher DPI value, you may also need to change the JVM heap size value through REPORTS_JVM_OPTIONS to avoid the Out Of Memory error for the JVM.
  • This environment variable is not supported in Oracle Reports distribution functionality, as it is specific to PDF and printer outputs only.

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