Saturday, November 20, 2010

Portable Document Format (PDF)


is an open standard for document exchange
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1 comment:

  1. AmeliaOctober 18, 2012 at 5:57 AM

    I am aware of this document format which is highly popular and is used for electronic document exchange. I would like to know more about it and the functionality that this document format offers.
    digital signature PDF

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