I have a ballot with a bunch of different contests (President, Vice-president,
etc.) each with its candidates. Next to each candidate is an oval. I'd like to
use iText to check a given oval for each contest.
The ovals are not within an AcroForm, and they are not checkboxes. I opened my
pdf with Acrobat and selected a random oval and they seem to be just normal
objects ... perhaps graphic objects, I'm not sure, I couldn't tell.
I used a combination of PDFReader, PDFStamper and Document to uncompress the
PDF, to be able to edit it in a normal text editor, and it seems that each oval
looks something like this:
01 g
>89.04 650.52 41.22 24 re
>f
>1 J 1 j 0.2 w 10 M
>1 i
>116.28 662.58 m
>116.28 664.56 112.44 666.12 107.7 666.12 c
>102.96 666.12 99.12 664.56 99.12 662.58 c
>99.12 660.6 102.96 658.98 107.7 658.98 c
>112.44 658.98 116.28 660.6 116.28 662.58 c
>b*
and if I manually add a '0 g' between '1 i' and '116.28 662.58 m', it marks the
oval. But if I write a program in Java to do this, to add '0 g' for each oval,
the resulting PDF is corrupt, because ... well, you can't just edit a PDF like
that, you have to update the stream, the dictionary, etc.
Is there a way to do this with iText?
Cheers.
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