[PDFBox-user] Re: detecting layers

[Mark <eli...@gm...>]

Here are a couple of PDF files to demonstrate what I am doing:

http://www.user-agent.org/washpost_sniperletter.pdf
http://www.user-agent.org/washpost_unredacted.pdf

These came from the following article:
http://www.schneier.com/crypto-gram-0308.html#8

Thank you.



On 11/4/05, Mark <eli...@gm...> wrote:
>
> Hello, this is my first post to the mailing list. I have moved from the
> sourceforge forums to the mailing list.
>
> How can I parse a PDF so that I can detect layers in a PDF? I want to be
> able to determine if someone has placed a black "box" over some text in
> order to hide information.
>
> Thank you.
>