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Posted to dev@pdfbox.apache.org by "Maruan Sahyoun (JIRA)" <ji...@apache.org> on 2016/12/04 15:50:58 UTC
[jira] [Comment Edited] (PDFBOX-3569) Performance regression in
PDColorSpace#toRGBImageAWT
[ https://issues.apache.org/jira/browse/PDFBOX-3569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15720151#comment-15720151 ]
Maruan Sahyoun edited comment on PDFBOX-3569 at 12/4/16 3:50 PM:
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I'd go for documenting it in the Javadoc and the release notes. Maybe we start having some more information in the notes for notable changes similar to what we did for moving from 1.8.x to 2.0.0 (Migration Guide) What we could do is start documenting these changes as we develop a new release so it's a living document and as soon as the release is done the document will be stable. For changes which need some more explanation we could also have a small article visible in the blog section of the website. WDYT?
was (Author: msahyoun):
I'd go for documenting it in the Javadoc and the release notes. Maybe we start having some more information in the notes for notable changes similar to what we did for moving from 1.8.x to 2.0.0 (Migration Guide) What we could do is start documenting these changes as we develop a new release so it's a living document and as soon as the release is done the document will be stable. WDYT?
> Performance regression in PDColorSpace#toRGBImageAWT
> ----------------------------------------------------
>
> Key: PDFBOX-3569
> URL: https://issues.apache.org/jira/browse/PDFBOX-3569
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.3, 2.1.0
> Reporter: Andreas Lehmkühler
> Assignee: Andreas Lehmkühler
> Fix For: 2.0.4, 2.1.0
>
> Attachments: PDFBOX-1058.pdf-3.png, PDFBOX-1058.pdf-3.png, PDFBOX-1058.pdf-3.png-diff.png, PDFBOX-2700-JCS_YCCK.pdf-1.png, PDFBOX-2700-JCS_YCCK.pdf-1.png, PDFBOX-2700-JCS_YCCK.pdf-1.png-diff.png, PDFBOX-3569-patch_v2.txt, PDFBOX-3569-patch_v3.txt
>
>
> I've a private pdf containing 1900 tiny inline images (CMYK, 8bit) which renders way too slow. Again the CMYK2RGB conversion is the culprit here, BUT the known issue with the KCMS/LCMS change isn't the main problem here.
> I ran some tests on linux (PDFToImage time -imageType png -resolution 150)
> 1.6.0_37: 355s
> 1.7.0_25: 289s
> 1.7.0_75: 298s
> 1.8.0_101: cancelled after 15 min
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