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https://issues.apache.org/jira/browse/PDFBOX-3353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16199958#comment-16199958
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Tilman Hausherr edited comment on PDFBOX-3353 at 10/11/17 8:28 AM:
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No, too difficult... needs more math knowledge. Even something seemingly simple
as just drawing a single arc is based on a publication of a university math
professor, see
https://stackoverflow.com/questions/42648299/not-able-to-draw-multiple-semi-circles-using-pdpagecontentstream
and follow the links. Drawing the corners of a cloud polygon is where it gets
really tricky.
was (Author: tilman):
No, too difficult... needs more math knowledge. Even something seemingly simple
as just drawing a single arc is based on a publication of a university math
professor, see
https://stackoverflow.com/questions/42648299/not-able-to-draw-multiple-semi-circles-using-pdpagecontentstream
and follows the links. Drawing the corners is where it gets really tricky.
> 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, 3.0.0
> Reporter: Tilman Hausherr
> Labels: Annotations
> Attachments: PDFBOX-3353-highlight-noAP-001796-p1.pdf,
> PDFBOX-3353-highlight-noAP.pdf, ShowAnnotation-4.java, SquareAnnotations.pdf,
> line_dimension_appearance_stream-noAP.pdf,
> line_dimension_appearance_stream.pdf, showAnnotation.java,
> text_markup_ap_test.pdf
>
>
> 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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