At 7:08 PM +0200 10/16/06, Antoine wrote:
>I can't remember - are both these invisible to acrobat (no way to
>access them through the gui)?

        If you want something that is totally invisible to the 
Acrobat GUI - then I would use a custom dictionary in the /Catalog 
with whatever you want it it...


>Nothing is invisible to
>$ vi mypdf.pdf

        Not true, either.

        If you do your own data block, then you can encrypt it, 
filter it, etc. so that it just looks like binary garbage in vi.


Leonard
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Leonard Rosenthol                            <mailto:[EMAIL PROTECTED]>
Chief Technical Officer                      <http://www.pdfsages.com>
PDF Sages, Inc.                              215-938-7080 (voice)
                                              215-689-3863 (fax)

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