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https://issues.apache.org/jira/browse/PDFBOX-2692?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14483495#comment-14483495
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John Hewson edited comment on PDFBOX-2692 at 4/7/15 10:00 PM:
--------------------------------------------------------------
That approach is obsolete in 2.0. We now provide PDFGraphicsStreamEngine which
provides easy, accurate and high-quality text and graphics stream processing
methods, which can be overridden. You will be able to rewrite your current 1.8
PageDrawer subclass in 2.0 as a PDFGraphicsStreamEngine subclass, with many
fewer lines of code and a significant reduction in complexity.
I'd be interested to know if you have any needs which are not served by
PDFGraphicsStreamEngine?
was (Author: jahewson):
That approach is obsolete in 2.0. We now provide PDFGraphicsStreamEngine which
provides easy, accurate and high-quality text and graphics stream processing
methods, which can be overridden. You will be able to rewrite your current 1.8
PageDrawer subclass in 2.0 as a PDFGraphicsStreamEngine subclass, with many
fewer lines of code and a significant reduction in complexity.
PageDrawer is not our downstream graphics class in 2.0, PDFGraphicsStreamEngine
is.
> Possibility to use our own and/or overwrite PageDrawer class
> ------------------------------------------------------------
>
> Key: PDFBOX-2692
> URL: https://issues.apache.org/jira/browse/PDFBOX-2692
> Project: PDFBox
> Issue Type: Wish
> Components: Rendering
> Affects Versions: 2.0.0
> Environment: JDK 1.8, Windows 7, PDF-Box - current trunk
> Reporter: Manfred Pock
> Assignee: Andreas Lehmkühler
> Labels: features
> Fix For: 2.0.0
>
> Attachments: pdfexample.jpg
>
>
> We use PDFBox to render PDF's. Additionally, we have the posibility to add
> different kinds of annotation (stamp, marks, free text, notes..) like in a
> wysiwyg-editor. To do this, it is necessary that we paint these annotations
> on our own.
> Another reason is not to paint all parts: for example we have a pdf with an
> embedded picture. Behind the picture we have the OCR-text to this picture.
> This text is only needed for searching und should not be painted.
> Thus it would be useful to use our own derived PageDrawer. As I see there are
> some things to change.
> a.) remove the final from PagerDrawer-class.
> b.) make some global-variables (graphics, xform, pageSize...) protected,
> c.) also some methods like setRenderingHints should be protected
> d.) maybe the possibility to say to the PDFRender which PageDrawer should be
> used.
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