diff --git a/build.xml b/build.xml
index b6dd8be87..a8f2b1def 100644
--- a/build.xml
+++ b/build.xml
@@ -39,8 +39,6 @@
 		<include name="webdav/**" />
 		<include name="install/**" />
 		<include name="restapi/**" />
-		<include name="pdfviewer/**" />
-		<include name="www/ext/example/**" />
 		<include name="www/index.php" />
 		<include name="CHANGELOG" />
 		<include name=".htaccess" />
@@ -200,9 +198,6 @@
 				<exec executable="ln" passthru="true" dir="${builddir}/export/${shortversion}/www">
 					<arg line="-s ${srcdir}/styles" />
 				</exec>
-				<exec executable="ln" passthru="true" dir="${builddir}/export/${shortversion}/www">
-					<arg line="-s ${srcdir}/pdfviewer" />
-				</exec>
 				<exec executable="ln" passthru="true" dir="${builddir}/export/${shortversion}/www">
 					<arg line="-s ${srcdir}/install" />
 				</exec>
@@ -223,6 +218,11 @@
 				<copy todir="${builddir}/export/${shortversion}/www/ext/example">
 					<fileset dir="${srcdir}/www/ext/example" defaultexcludes="false" />
 				</copy>
+				<copy todir="${builddir}/export/${shortversion}/www/ext/pdfviewer">
+					<fileset dir="${srcdir}/www/ext/pdfviewer/" expandsymboliclinks="true" defaultexcludes="false">
+						<include name="**/*" />
+					</fileset>
+				</copy>
 				<copy tofile="${builddir}/export/${shortversion}/composer.json" file="composer-dist.json">
 					<filterchain>
 						<replaceregexp>
@@ -262,9 +262,6 @@
 				<exec executable="ln" passthru="true" dir="${builddir}/export/${shortversion}/www">
 					<arg line="-s ../seeddms/styles" />
 				</exec>
-				<exec executable="ln" passthru="true" dir="${builddir}/export/${shortversion}/www">
-					<arg line="-s ../seeddms/pdfviewer" />
-				</exec>
 				<exec executable="ln" passthru="true" dir="${builddir}/export/${shortversion}/www">
 					<arg line="-s ../seeddms/install" />
 				</exec>