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https://issues.apache.org/jira/browse/PDFBOX-3353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15390651#comment-15390651
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Tilman Hausherr commented on PDFBOX-3353:
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{quote}
I wanted to be able to replicate Adobe Acrobats behavior when creating the
annotations appearance stream. There are some specifics e.g. when setting the
color the color space CS operator is not printed. With the current
implementation of PDPageContentStream the CS operator has always been printed.
So there are some differences which I wanted to deal with without changing how
PDPageContentStream currently works
{quote}
This could also be solved differently, i.e. by improving the one parameter
{{setStrokingColor()}} / {{setNonStrokingColor()}} so that they call the
multi-parameter methods, which would result in shorter content streams for all
types of content streams. I.e. {{setStrokingColor(PDColor color)}} should call
should call
{{setStrokingColor(color.getComponents()[0],color.getComponents()[1],color.getComponents()[2]f)}}
if {{color.getColorSpace() instanceof PDDeviceRGB}}.
> Create appearance streams for annotations
> -----------------------------------------
>
> Key: PDFBOX-3353
> URL: https://issues.apache.org/jira/browse/PDFBOX-3353
> Project: PDFBox
> Issue Type: Task
> Components: PDModel, Rendering
> Affects Versions: 1.8.12, 2.0.0, 2.0.1, 2.0.2, 2.1.0
> Reporter: Tilman Hausherr
> Labels: Annotations
> Attachments: SquareAnnotations.pdf, showAnnotation.java
>
>
> Create appearance streams for annotations when missing.
> I'll start by replacing current code for Ink and Link annotations.
> Good example PDFs:
> http://www.pdfill.com/example/pdf_commenting_new.pdf
> https://github.com/mozilla/pdf.js/issues/6810
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