[Bug 64867] New: Provide PDF rendering with PPTX2PNG

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[Bug 64867] New: Provide PDF rendering with PPTX2PNG

Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=64867

            Bug ID: 64867
           Summary: Provide PDF rendering with PPTX2PNG
           Product: POI
           Version: 4.1.x-dev
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: SL Common
          Assignee: [hidden email]
          Reporter: [hidden email]
  Target Milestone: ---

Using the pdfbox-graphics2d [1] library, it's easy to provide PDF slideshow
rendering. Not all features of bitmap based rendering are supported but the
results for the usual test documents look really good.


[1] https://github.com/rototor/pdfbox-graphics2d

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[Bug 64867] Provide PDF rendering with PPTX2PNG

Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=64867

--- Comment #1 from Andreas Beeker <[hidden email]> ---
Applied via r1883074

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[Bug 64867] Provide PDF rendering with PPTX2PNG

Bugzilla from bugzilla@apache.org
In reply to this post by Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=64867

Andreas Beeker <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #2 from Andreas Beeker <[hidden email]> ---
Add additional dependencies via r1883075

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[Bug 64867] Provide PDF rendering with PPTX2PNG

Bugzilla from bugzilla@apache.org
In reply to this post by Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=64867

--- Comment #3 from Emmeran Seehuber <[hidden email]> ---
I've just released pdfbox-graphics2d version 0.29 with the fix for drawing an
image while a transparent color is active and an AlphaComposite is active.

Please fill issues in the GitHub repository for any missing features / not
working Paint mappings. I did a quick look in the POI sources, and found some
custom Paint's. Those have to be mapped explicit - if you can provide me with
some sample .pptx files which "trigger" these paints I'll try to map them.

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[Bug 64867] Provide PDF rendering with PPTX2PNG

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In reply to this post by Bugzilla from bugzilla@apache.org
https://bz.apache.org/bugzilla/show_bug.cgi?id=64867

--- Comment #4 from Andreas Beeker <[hidden email]> ---
Thank you for releasing pdf-graphics2d again - I've just integrated it.

The set of (missing) fill features would be:
- texture paint with aligned patterns
- gradient fills
- WMF / EMF raster operations - see the new ROP2Table/ROP3Table
examples-classes *)

My idea to implement missing features is, to have a second BufferedImage-based
Graphics2D context which I use to extract bitmaps for those known unsupported
features



*) ..., which composite pattern (HwmfROP2/3Composite) I try to integrate now.
But failing to cover already working renderings ...

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