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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 QgseJV0ycHJPo3svVDNEiNBj+sSFyIkjnwkwdlyjGMU0c9jzNcXrD7BgkDbstGpy
 787IK2Dqzq/PyIdgTM5EGg==

<SEC-DOCUMENT>0001271294-07-000002.txt : 20070510
<SEC-HEADER>0001271294-07-000002.hdr.sgml : 20070510
<ACCEPTANCE-DATETIME>20070510161211
ACCESSION NUMBER:		0001271294-07-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070501
FILED AS OF DATE:		20070510
DATE AS OF CHANGE:		20070510

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ACNB CORP
		CENTRAL INDEX KEY:			0000715579
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				232233457
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		675 OLD HARRISBURG RD
		STREET 2:		P O BOX 3129
		CITY:			GETTYSBURG
		STATE:			PA
		ZIP:			17325
		BUSINESS PHONE:		7173343161

	MAIL ADDRESS:	
		STREET 1:		P O BOX 3129
		STREET 2:		675 OLD HARRISBURG RD
		CITY:			GETTYSBURG
		STATE:			PA
		ZIP:			17325

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HEBERLIG EDGAR S
		CENTRAL INDEX KEY:			0001271296

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-11783
		FILM NUMBER:		07837922

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		7177763319

	MAIL ADDRESS:	
		STREET 1:		200 MOUNT ROCK ROAD
		CITY:			NEWVILLE
		STATE:			PA
		ZIP:			17241
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-05-01</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000715579</issuerCik>
        <issuerName>ACNB CORP</issuerName>
        <issuerTradingSymbol>ACNB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001271296</rptOwnerCik>
            <rptOwnerName>HEBERLIG EDGAR S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 MOUNT ROCK ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEWVILLE</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>17241</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Director Emeritus</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>/s/ Lynda L Glass as POA for Edgar S Heberlig</signatureName>
        <signatureDate>2007-05-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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