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From "Tilman Hausherr (Jira)" <j...@apache.org>
Subject [jira] [Updated] (PDFBOX-4655) ImageIOUtil.WriteImage creates huge PNG images when used with default quality on jdk11
Date Sat, 21 Sep 2019 11:11:00 GMT

     [ https://issues.apache.org/jira/browse/PDFBOX-4655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tilman Hausherr updated PDFBOX-4655:
------------------------------------
    Labels: jdk11 jdk12 jdk13  (was: )

> ImageIOUtil.WriteImage creates huge PNG images when used with default quality on jdk11
> --------------------------------------------------------------------------------------
>
>                 Key: PDFBOX-4655
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4655
>             Project: PDFBox
>          Issue Type: Bug
>          Components: Utilities
>    Affects Versions: 2.0.17
>            Reporter: Tilman Hausherr
>            Assignee: Tilman Hausherr
>            Priority: Major
>              Labels: jdk11, jdk12, jdk13
>             Fix For: 2.0.18, 3.0.0 PDFBox
>
>
> [~tallison@apache.org] pointed us to a build failure in Tika on jdk11. The cause may
be different .PNG files - I noticed that PNG files saved with ImageIOUtil.write() are huge
when done with default quality on jdk12 / 13, which is 1. In the past (jdk8 and before) that
parameter had no effect for PNG files but apparently no more.
> Todo:
> - use flexible default value
> - mention in Javadoc
> - change command line tools (PDFToImage / ExtractImages)
> - change one test



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