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https://issues.apache.org/jira/browse/OPENMEETINGS-2089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16888098#comment-16888098
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ASF subversion and git services commented on OPENMEETINGS-2089:
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Commit cd028b5bc7d58bdfb77c9dc496afa916a5213394 in openmeetings's branch 
refs/heads/4.0.x from Maxim Solodovnik
[ https://gitbox.apache.org/repos/asf?p=openmeetings.git;h=cd028b5 ]

[OPENMEETINGS-2089] additional conversion parameter for PDFs is added


> Additional ImageMagic parameter should be added
> -----------------------------------------------
>
>                 Key: OPENMEETINGS-2089
>                 URL: https://issues.apache.org/jira/browse/OPENMEETINGS-2089
>             Project: Openmeetings
>          Issue Type: Improvement
>          Components: Converters
>    Affects Versions: 4.0.8
>            Reporter: Maxim Solodovnik
>            Assignee: Maxim Solodovnik
>            Priority: Major
>             Fix For: 4.0.10, 5.0.0-M3
>
>
> As per mail-list discussion:
> I needed to convert some room files afterwards. I user command out of
> the logs and got for some files an error.
> /usr/bin/convert -density 125
> /SERVER/webapps/openmeetings/data/upload/files/HASH/HASH.pdf -quality
> 100 /SERVER/webapps/openmeetings/data/upload/files/HASH/page-%04d.png
> convert: profile 'icc': 'RGB ': RGB color space not permitted on
> grayscale PNG
> `/SERVER/webapps/openmeetings/data/upload/files/HASH/page-%04d.png' @
> warning/png.c/MagickPNGWarningHandler/1654.
> I needed to add parameter +profile '*' . Now convert is working without
> error.
> /usr/bin/convert -density 125
> /SERVER/webapps/openmeetings/data/upload/files/HASH/HASH.pdf +profile
> '*' -quality 100
> /usr/lib/red5/webapps/openmeetings/data/upload/files/HASH/page-%04d.png
> Greetings Peter



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