On May 15, 2005, at 11:47 AM, Brian Raymond wrote:
Digital Signatures using certificates has been available in the PDF
spec for
years. If you have Acrobat Professional you can use it to apply a
digital
signature to the PDF on OSX, although AFAIK the built in PDF
support won't
apply them as of 10.3.
- Brian
On 5/15/05 11:34 AM, "Michael Pike" <email@hidden> wrote:
Is there a way to digitally sign a PDF file - similar to how we
digitally sign email messages?
I am getting ready to publish a document in PDF and I want to make
sure that it is not modified at all, or at least to make sure that
the user can verify that it is the authentic document I created.
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