Authentidate Holding Corp. Confirms Adjournment of Special Meeting of Stockholders

Authentidate Holding Corp. Confirms Adjournment of Special Meeting of
Stockholders

BERKELEY HEIGHTS, N.J., Feb. 19, 2013 (GLOBE NEWSWIRE) -- Authentidate Holding
Corp. (Nasdaq:ADAT), a provider of secure web-based software applications and
telehealth products and services for healthcare organizations, today confirmed
that its special meeting of stockholders scheduled for February 15, 2013 has
been adjourned until 10:00 a.m., local time on February 27, 2013. The location
of such reconvened special meeting will remain the company's corporate
headquarters, located at Connell Corporate Center, 300 Connell Drive, 5^th
Floor, Berkeley Heights, New Jersey 07922. The record date for stockholders
entitled to vote at the special meeting remains January 7, 2013.

If a stockholder has previously submitted its proxy card and does not wish to
change its vote, no further action is required by such stockholder. If a
stockholder would like to vote or change its vote, please refer to the
instructions provided in Authentidate's proxy statement dated January 16,
2013, which is available at www.sec.gov or at
www.cstproxy.com/authentidate/sm2013.

About Authentidate Holding Corp.

Authentidate Holding Corp. is a provider of secure web-based software
applications and telehealth products and services that enable healthcare
organizations to coordinate care for patients and enhance related
administrative and clinical workflows. Authentidate's products and services
enable healthcare organizations to increase revenues, reduce costs and enhance
patient care by eliminating paper and manual work steps from clinical and
administrative processes. Authentidate's telehealth solutions combine patient
vital signs monitoring with a web application that streamlines patient care
management.Delivered as Software as a Service (SaaS), customers only require
an Internet connection and web browser to access our web-based applications
thereby utilizing previous investments in systems and technology. The
company's healthcare customers and users include leading homecare companies,
health systems, physician groups and governmental entities. These
organizations utilize the company's products and services to coordinate care
for patients outside of acute-care.

For more information, visit the company's website atwww.authentidate.com

Important Additional Information Filed With The SEC

Authentidate has filed a proxy statement with the Securities and Exchange
Commission (the "SEC") pursuant to which Authentidate's board of directors is
soliciting proxies in connection with seeking stockholder approval of the
conversion of its Series C Convertible Redeemable Preferred Stock. Investors
and security holders are urged to read the proxy statement and other relevant
documents filed with the SEC because they contain important
information.Authentidate filed the proxy statement with the SEC on
January16, 2013 and disseminated the proxy statement to its stockholders on
or about January16, 2013. Security holders may obtain a free copy of the
proxy statement and other documents filed by Authentidate at the SEC's web
site at http://www.sec.gov. The proxy statement and other documents may also
be obtained free of charge by contacting Authentidate at
marketinggroup@authentidate.com or by telephone: (908)787-1700.

Participants In The Solicitation

Authentidate and its executive officers and directors may be deemed to be
participants in the solicitation of proxies from its stockholders with respect
to the proposal to be considered at the special meeting. Information regarding
such executive officers and directors is included in Authentidate's Annual
Report on Form 10-K for the fiscal year ended June 30, 2012, filed with the
SEC on September 28, 2012, which is available free of charge at the SEC's web
site at http://www.sec.gov and by contacting Authentidate at the contact
information set forth above. Certain executive officers and/or directors of
Authentidate may have interests in the transaction that may differ from the
interests of Authentidate's stockholders generally. These interests are
described in the proxy statement for the special meeting filed with the SEC.

This press release contains forward-looking statements within the meaning of
section 27A of the Securities Act of 1933 and section 21E of the Securities
Act of 1934. When used in this release, the words "believe," "anticipate,"
"think," "intend," "plan," "will be," "expect," and similar expressions
identify such forward-looking statements. Such statements regarding future
events and/or the future financial performance of the company are subject to
certain risks and uncertainties, which could cause actual events or the actual
future results of the company to differ materially from any forward-looking
statement. Such risks and uncertainties include, among other things, the
availability of any needed financing, the company's ability to implement its
business plan for various applications of its technologies, the impact of
competition, the management of growth, and the other risks and uncertainties
that may be detailed from time to time in the company's reports filed with the
Securities and Exchange Commission. In light of the significant risks and
uncertainties inherent in the forward-looking statements included herein, the
inclusion of such statements should not be regarded as a representation by the
company or any other person that the objectives and plans of the company will
be achieved.

Authentidate and Inscrybe are registered trademarks of Authentidate Holding
Corp. All other trade names are the property of their respective owners.

CONTACT: For: Authentidate Holding Corp.
        
         Investor Contacts:
         Robert Schatz
         Wolfe Axelrod Weinberger Assoc. LLC
         (212) 370-4500; (212) 370-4505 fax
 
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