i get the picture... thx for the info. ( esp. for pointing out that
a different editor might drop this object; sth i hadn't really
considered )

btw : switched to the latest version of the 'maintain' branch, but
the way the custom config xml is processed seems to differ from the
latest distribution version.

any helpful hints on this one?

thx in advance.

greetz,

ald

-----Original Message-----
From: Jeremias Maerki [mailto:[EMAIL PROTECTED]
Sent: maandag 23 juni 2003 11:19
To: [EMAIL PROTECTED]
Subject: Re: Embedding FOP, PDF Encryption & Custom fonts


What kind of signature/verification? A cryptographic signature inside
the PDF to authenticate the generator of the PDF? This is already
standardized
by Adobe.

PDF is designed to be extensible. Therefore it is perfectly valid to add
custom streams/objects to the PDF. But you must be prepared that a PDF
editor may drop the object if it saves the PDF again. And of course, you
need to provide a way to support your proprietary extension. Better
stick to standards.

On 22.06.2003 12:26:04 Andreas Delmelle wrote:
> also, i'm considering the option of creating an
> additional content-stream, that could contain a
> signature for verification.
>
> is it possible to include an object in the pdf that
> would be left alone by other readers ( but could be
> used, perhaps as a form of FOP-specific verification )
> and does this even make sense?



Jeremias Maerki


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