[
https://issues.apache.org/jira/browse/PDFBOX-2530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14290994#comment-14290994
]
khyrul bashar commented on PDFBOX-2530:
---------------------------------------
I'm interested to work on this project in next summer.
To get Introduced I've made a first look up in source code. Now trying to
understand the architecture of PDFBox and thus spending time to understand
structure of PDF itself.
I need some guideline. how to prepare for the project and what are the topics I
should know beforehand to work on this project.
> Improve PDFDebugger
> -------------------
>
> Key: PDFBOX-2530
> URL: https://issues.apache.org/jira/browse/PDFBOX-2530
> Project: PDFBox
> Issue Type: Improvement
> Components: Utilities
> Affects Versions: 1.8.8, 2.0.0
> Reporter: Tilman Hausherr
> Labels: gsoc2015
>
> (This is an idea for [GSOC2015|https://www.google-melange.com/]. But if you
> want to submit some improvements to the code outside of GSOC2015 now, this is
> fine. We can always come up with other project ideas for GSOC2015)
> Our command line utility PDFDebugger (part of the command line pdfbox-app get
> it [here|https://pdfbox.apache.org/downloads.html], read description
> [here|https://pdfbox.apache.org/commandline/], get source code
> [here|https://svn.apache.org/viewvc/pdfbox/trunk/tools/src/main/java/org/apache/pdfbox/tools/PDFDebugger.java?view=markup&sortby=date])
> needs some improvements:
> - hex view
> - view of non printable characters
> - saving streams
> - binary copy & paste
> - ability to search in streams (very useful for content streams and meta
> data)
> - show images that are streams
> - show PDIndexed color lookup table, show the index value, the base and
> RGB color value sets when the mouse moves
> - show PDSeparation color
> - show PDDeviceN colors
> - show font encodings and characters
> - edit attributes
> - edit streams, while keeping or changing the compression filter
> - save altered PDF
> - color mark of certain PDF operators, especially Q...q and text operators
> (BT...ET). Ideally, it should help the user understand the "bracketing" of
> these operators, i.e. understand where a sequence starts and where it ends.
> (See "operator summary" in the PDF Spec) Other "important" operators I can
> think of are the matrix, font and color operators. A cool advanced thing
> would be to show the current color or the font in a popup when hovering above
> such an operator.
> To see a product with a similar purpose that is better than PDFDebugger,
> watch [this video|https://www.youtube.com/watch?v=g-QcU9B4qMc].
> I'm not asking to implement a clone of that product (I don't use it, all I
> know is that video), but we at PDFBox really need something that makes PDF
> debugging easier. As an example of how the current PDFDebugger prevented me
> from finding a bug quickly, see PDFBOX-2401 and search for "PDFDebugger".
> Prerequisites:
> - java programming, especially the GUI components
> - the ability to understand existing source code
> Using external software components is possible (must have Apache License or a
> compatible one), but should be decided on a case-by-case basis, we don't want
> to get too big.
> Development strategy: go from the easy to the difficult. The wished features
> are already sorted this way (mostly).
> Mentor: Tilman Hausherr (European timezone, languages: german, english,
> french). To see the GSoC2014 project I mentored, go to PDFBOX-1915.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
