diff --git a/Dockerfile b/Dockerfile
index de5e2d87..58fd0ed3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,8 @@ ARG VERSION_TAG
 # Set Environment Variables
 ENV DOCKER_ENABLE_SECURITY=false \
     HOME=/home/stirlingpdfuser \
-    VERSION_TAG=$VERSION_TAG
+    VERSION_TAG=$VERSION_TAG \
+    JAVA_TOOL_OPTIONS="$JAVA_TOOL_OPTIONS -XX:MaxRAMPercentage=75"
 #    PUID=1000 \
 #    PGID=1000 \
 #    UMASK=022 \
diff --git a/Dockerfile-lite b/Dockerfile-lite
index 9d88a1dd..90de9235 100644
--- a/Dockerfile-lite
+++ b/Dockerfile-lite
@@ -17,7 +17,8 @@ RUN apt-get update && \
 # Set Environment Variables
 ENV DOCKER_ENABLE_SECURITY=false \
     HOME=/home/stirlingpdfuser \
-    VERSION_TAG=$VERSION_TAG 
+    VERSION_TAG=$VERSION_TAG \
+    JAVA_TOOL_OPTIONS="$JAVA_TOOL_OPTIONS -XX:MaxRAMPercentage=75"
 #	PUID=1000 \
 #   PGID=1000 \
 #   UMASK=022 \
diff --git a/Dockerfile-ultra-lite b/Dockerfile-ultra-lite
index a416926b..d912c842 100644
--- a/Dockerfile-ultra-lite
+++ b/Dockerfile-ultra-lite
@@ -6,7 +6,8 @@ ARG VERSION_TAG
 # Set Environment Variables
 ENV DOCKER_ENABLE_SECURITY=false \
     HOME=/home/stirlingpdfuser \
-    VERSION_TAG=$VERSION_TAG 
+    VERSION_TAG=$VERSION_TAG \
+    JAVA_TOOL_OPTIONS="$JAVA_TOOL_OPTIONS -XX:MaxRAMPercentage=75"
 #	PUID=1000 \
 #   PGID=1000 \
 #   UMASK=022 \