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https://issues.apache.org/jira/browse/IMAGING-126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14260864#comment-14260864
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Damjan Jovanovic commented on IMAGING-126:
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Guys I've gone further than that: I even have a patch to Imaging which 
implements LZW decompression using the classes in Compress, and copies those 
classes into Imaging's JAR using maven-shade-plugin to avoid a run-time 
dependency. It passed all the tests, and was even somewhat faster than 
Imaging's LZW in my preliminary benchmarks - can't remember by how much though. 
It's not committed yet because I wasn't sure if Imaging could/should depend on 
a SNAPSHOT version of Compress, and there still hasn't been any new releases of 
Compress since before my LZW changes to it were committed.


> TIFF and PNG images should not be bigger than the ones created by java ImageIO
> ------------------------------------------------------------------------------
>
>                 Key: IMAGING-126
>                 URL: https://issues.apache.org/jira/browse/IMAGING-126
>             Project: Commons Imaging
>          Issue Type: Improvement
>          Components: Format: PNG, Format: TIFF
>    Affects Versions: 1.0
>         Environment: W7
>            Reporter: Tilman Hausherr
>            Priority: Minor
>             Fix For: Discussion
>
>         Attachments: Imaging_126_patch_1.patch, pdfbox-1870-devicen3-01.png, 
> pdfbox-1870-devicen3-01.tif, pdfbox-1870-devicen3.pdf-1.png, 
> pdfbox-1870-devicen3.pdf-1.tif
>
>
> I tried to use Apache Imaging for the PDFBOX project (PDFBOX-1734) because of 
> problems with setting the tiff resolution in java imageio.
> While the code is pretty nice, I found that the generated images are 
> sometimes much bigger in size than the ones generated by java imageio.
> Example:
> pdfbox-1870-devicen3-01.png 50 KB (imageio)
> pdfbox-1870-devicen3.pdf-1.png 70 KB (imaging)
> pdfbox-1870-devicen3-01.tif 401 KB (imageio)
> pdfbox-1870-devicen3.pdf-1.tif 1063 KB (imaging)



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