diff --git a/pagecontent/schema/pagecontent.xsd b/pagecontent/schema/pagecontent.xsd
index 97b9dc4..1a7db5c 100644
--- a/pagecontent/schema/pagecontent.xsd
+++ b/pagecontent/schema/pagecontent.xsd
@@ -116,6 +116,11 @@
 		<attribute name="imageFilename" type="string" use="required"></attribute>
 		<attribute name="imageWidth" type="int" use="required"></attribute>
 		<attribute name="imageHeight" type="int" use="required"></attribute>
+		<attribute name="imageXResolution" type="int" use="optional"></attribute>
+	        <attribute name="imageYResolution" type="int" use="optional"></attribute>
+	        <attribute name="imageCompression" type="string" use="optional"></attribute>
+	        <attribute name="imagePhotometricInterpretation" type="string" use="optional"></attribute>
+	        <attribute name="imageResolutionUnit" type="string" use="optional"></attribute>
 		<attribute name="custom" type="string">
 			<annotation>
 				<documentation>For generic use</documentation>
@@ -2134,4 +2139,4 @@ It does not contain pagenumber (if not part of running title), marginals, signat
     			</annotation></element>
         </sequence>
     </complexType>
-</schema>
\ No newline at end of file
+</schema>