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https://issues.apache.org/jira/browse/FOP-3108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17723382#comment-17723382
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Dave Roxburgh commented on FOP-3108:
------------------------------------
The attached submitted.patch addresses this issue where the external document
page is embedded any number of times on any number of target document pages. It
is a patch to fop-pdf-images 60ea09b8b596ffdc2252bf4adc42331ec913638a
There are some cases where pattern transformation is still not 100% perfect -
the margin on the simple-page-master source/target affects the transformation
required but doesn't seem to be available at the point the affine transform is
calculated.
[^submitted.patch]
> [PATCH] fo:external-graphic - PDF with gradient component not displayed
> correctly after scaling
> -----------------------------------------------------------------------------------------------
>
> Key: FOP-3108
> URL: https://issues.apache.org/jira/browse/FOP-3108
> Project: FOP
> Issue Type: Bug
> Affects Versions: 2.7, 2.8
> Reporter: Mark Gibson
> Priority: Major
> Attachments: img-with-gradient.pdf, out1.pdf,
> patch_one_instance.diff, pdf-external-graphic-scaling-with-gradients.fo,
> submitted.patch
>
>
> Using PDF-Images to inject a PDF as an image (fo:external-graphic). Image/PDF
> has a gradient fill component. When scaling the image, the gradient does not
> display properly. Resulting from shifted gradient to no gradient depending
> on scale.
> *width scaling* All issues are found when scaling width by %
> *height scaling* Doesn't seem to even scale the image
>
> Files attached for testing:
> * *{{pdf-external-graphic-scaling-with-gradients.fo}}* - the FO file, with a
> selection of image inclusions at different scales and scaling methods
> * *{{img-with-gradient.pdf}}* - the PDF image being injected in to rendered
> pdf, containing a gradient filled component.
> * *{{out1.pdf}}* - the result of running fop on above
> Tested on Windows using FOP 2.7 and 2.8
> Command used to execute is
> {{fop.bat -fo pdf-external-graphic-scaling-with-gradients.fo -pdf out1.pdf}}
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