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https://issues.apache.org/jira/browse/PDFBOX-6307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-6307:
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Fix Version/s: 2.0.38
3.0.9 PDFBox
4.0.0
> Add option to PDVisibleSignDesigner to use page user space coordinates for
> the signature rectangle
> --------------------------------------------------------------------------------------------------
>
> Key: PDFBOX-6307
> URL: https://issues.apache.org/jira/browse/PDFBOX-6307
> Project: PDFBox
> Issue Type: Improvement
> Components: Signing
> Affects Versions: 2.0.36, 2.0.37, 2.0.38
> Reporter: Evandro Magalhaes Leite Junior
> Priority: Minor
> Labels: patch, pull-request-available
> Fix For: 2.0.38, 3.0.9 PDFBox, 4.0.0
>
>
> PDVisibleSigBuilder.createSignatureRectangle() always converts the y position
> with the template height (the lower left y is {{templateHeight - yAxis -
> height}}). This assumes that yAxis is measured from the top of the template.
> Callers that already have coordinates in the default user space of the page
> (origin at the lower left of the unrotated page) cannot place the
> visible signature exactly where they want without compensating for this
> conversion. This is especially awkward for pages with a /Rotate
> entry.
> Proposal: add an opt-in option
> PDVisibleSignDesigner.useUserSpaceCoordinates(boolean) (getter
> isUseUserSpaceCoordinates()), default
> false. When enabled, xAxis and yAxis are used as the lower left corner of
> the rectangle, and the upper right corner is {{xAxis + width}}, yAxis +
> height. The page rotation is not taken into account. The default behaviour is
> unchanged.
> The behaviour is documented in the javadoc of
> PDFTemplateBuilder.createSignatureRectangle() and of the new methods. A unit
> test
> (PDVisibleSignDesignerTest) covers both modes.
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