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https://issues.apache.org/jira/browse/PDFBOX-1963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13926201#comment-13926201
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John Hewson commented on PDFBOX-1963:
-------------------------------------
I've found the problem with PNG resolution, "HorizontalPixelSize" is repeated
twice:
{code}
Element h = new IIOMetadataNode("HorizontalPixelSize");
h.setAttribute("value", Double.toString(dpi / 25.4));
dimension.appendChild(h);
Element v = new IIOMetadataNode("HorizontalPixelSize");
v.setAttribute("value", Double.toString(dpi / 25.4));
dimension.appendChild(v);
{code}
But it should be "VerticalPixelSize" the second time. Fixed in 1576078..
> PDFImageWriter doesn't make use of PDFStreamEngine
> --------------------------------------------------
>
> Key: PDFBOX-1963
> URL: https://issues.apache.org/jira/browse/PDFBOX-1963
> Project: PDFBox
> Issue Type: Improvement
> Components: Utilities
> Affects Versions: 2.0.0
> Reporter: John Hewson
> Assignee: John Hewson
> Fix For: 2.0.0
>
>
> PDFImageWriter is a subclass of PDFStreamEngine, however it never uses any of
> its functionality, the writeImage methods could be marked as static and
> behave in the same manner.
> The relationship between PDFImageWriter, RenderUtil, and ImageIOUtil no
> longer matches its historical origins and needs to be refactored.
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