diff --git a/engines/imagemagick/Dockerfile b/engines/imagemagick/Dockerfile
index e1cfa02a..c8949a6f 100644
--- a/engines/imagemagick/Dockerfile
+++ b/engines/imagemagick/Dockerfile
@@ -2,22 +2,29 @@
 #
 # PRODMAN-916 / ACS-12649 PoC: this engine has been switched from the custom (capability-reduced)
 # ImageMagick build to GraphicsMagick, built here FROM SOURCE with a full delegate set, including:
-#   * JP2 / JPEG-2000 support via JasPer (--with-jp2, jasper-devel)
-#   * PSD (Adobe Photoshop) support via --enable-broken-coders
-# Building from source (rather than the stock EPEL package) gives GraphicsMagick more capability than
-# the distribution package: it adds the PSD coder, which distributions disable by default since
-# GraphicsMagick 1.3.24. PDD (Adobe, PSD-structured) is handled by the same PSD coder via content
-# (magic-byte) detection.
+#   * PSD (Adobe Photoshop) support via --enable-broken-coders. Distributions disable the PSD coder
+#     by default since GraphicsMagick 1.3.24, so building from source is the only way to get it.
+#     PDD (Adobe, PSD-structured) is handled by the same coder via content (magic-byte) detection.
+#   * JP2 / JPEG-2000 support via JasPer. jasper-devel is NOT packaged for RHEL/Rocky 9 (JasPer was
+#     dropped from RHEL 9 / EPEL 9), so JasPer is also built from source here. GraphicsMagick 1.3.48
+#     targets the modern JasPer API (jas_init_library, JasPer 3.0.0+) and links cleanly against 4.x.
+#
+# WMF is disabled (--without-wmf) as libwmf is not available on the el9 base.
 #
 # GraphicsMagick is from the GraphicsMagick Group. See http://www.graphicsmagick.org/ .
+# JasPer is from Michael D. Adams / the JasPer project. See https://github.com/jasper-software/jasper .
 
 # More infos about this image: https://github.com/Alfresco/alfresco-docker-base-java
 ARG JAVA_BASE_IMAGE=alfresco/alfresco-base-java:jre17-rockylinux9@sha256:f98833508b7be8c4b44a25450f9faac44cacfdc075f2295e02836b93fd05bb9c
 FROM ${JAVA_BASE_IMAGE}
 
-# GraphicsMagick version to build from source.
+# Versions built from source.
 ARG GRAPHICSMAGICK_VERSION=1.3.48
+ARG JASPER_VERSION=4.2.9
+ENV GRAPHICSMAGICK_VERSION=${GRAPHICSMAGICK_VERSION}
+ENV JASPER_VERSION=${JASPER_VERSION}
 ENV GRAPHICSMAGICK_SRC_URL=https://downloads.sourceforge.net/project/graphicsmagick/graphicsmagick/${GRAPHICSMAGICK_VERSION}/GraphicsMagick-${GRAPHICSMAGICK_VERSION}.tar.xz
+ENV JASPER_SRC_URL=https://github.com/jasper-software/jasper/archive/refs/tags/version-${JASPER_VERSION}.tar.gz
 ENV JAVA_OPTS=""
 
 # Set default user information
@@ -28,17 +35,32 @@ ARG USERID=33002
 
 COPY target/${env.project_artifactId}-${env.project_version}.jar /usr/bin
 
-# Build GraphicsMagick from source with a full delegate set + PSD support (--enable-broken-coders).
+# Build JasPer (JP2) then GraphicsMagick (with PSD via --enable-broken-coders) from source.
+# NOTE: no '#' comments inside this RUN chain - a comment after a line continuation would swallow
+# the rest of the command.
 RUN ln /usr/bin/${env.project_artifactId}-${env.project_version}.jar /usr/bin/${env.project_artifactId}.jar && \
     dnf install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm && \
     dnf install -y dnf-plugins-core && \
     (dnf config-manager --set-enabled crb || true) && \
-    dnf groupinstall -y "Development Tools" && \
     dnf install -y \
-        gcc gcc-c++ make tar xz curl diffutils \
+        gcc gcc-c++ make cmake tar xz gzip curl diffutils gawk file \
         libjpeg-turbo-devel libpng-devel libtiff-devel libwebp-devel \
-        freetype-devel libxml2-devel lcms2-devel bzip2-devel zlib-devel \
-        jasper-devel && \
+        freetype-devel libxml2-devel lcms2-devel bzip2-devel zlib-devel && \
+    cd /tmp && \
+    curl -fSL --retry 3 --retry-delay 5 "${JASPER_SRC_URL}" -o jasper.tar.gz && \
+    tar -xzf jasper.tar.gz && \
+    cmake -S jasper-version-${JASPER_VERSION} -B jasper-build \
+        -DCMAKE_INSTALL_PREFIX=/usr/local \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DJAS_ENABLE_SHARED=ON \
+        -DJAS_ENABLE_DOC=OFF \
+        -DJAS_ENABLE_PROGRAMS=OFF \
+        -DJAS_ENABLE_OPENGL=OFF \
+        -DJAS_ENABLE_LIBJPEG=OFF && \
+    cmake --build jasper-build --parallel "$(nproc)" && \
+    cmake --install jasper-build && \
+    printf '/usr/local/lib\n/usr/local/lib64\n' > /etc/ld.so.conf.d/local.conf && \
+    ldconfig && \
     cd /tmp && \
     curl -fSL --retry 3 --retry-delay 5 "${GRAPHICSMAGICK_SRC_URL}" -o GraphicsMagick-${GRAPHICSMAGICK_VERSION}.tar.xz && \
     tar -xJf GraphicsMagick-${GRAPHICSMAGICK_VERSION}.tar.xz && \
@@ -51,12 +73,17 @@ RUN ln /usr/bin/${env.project_artifactId}-${env.project_version}.jar /usr/bin/${
         --with-jpeg --with-png --with-tiff --with-webp \
         --with-jp2 \
         --with-ttf --with-lcms2 --with-xml \
-        --with-zlib --with-bzlib && \
+        --with-zlib --with-bzlib \
+        --without-wmf \
+        CPPFLAGS="-I/usr/local/include" \
+        LDFLAGS="-L/usr/local/lib64 -L/usr/local/lib" && \
     make -j"$(nproc)" && \
     make install && \
-    echo "/usr/local/lib" > /etc/ld.so.conf.d/graphicsmagick.conf && \
     ldconfig && \
-    cd /tmp && rm -rf GraphicsMagick-${GRAPHICSMAGICK_VERSION} GraphicsMagick-${GRAPHICSMAGICK_VERSION}.tar.xz && \
+    /usr/local/bin/gm version && \
+    /usr/local/bin/gm convert -list format | grep -qi 'jp2' && \
+    /usr/local/bin/gm convert -list format | grep -qi 'psd' && \
+    cd /tmp && rm -rf GraphicsMagick-${GRAPHICSMAGICK_VERSION} GraphicsMagick-${GRAPHICSMAGICK_VERSION}.tar.xz jasper-version-${JASPER_VERSION} jasper-build jasper.tar.gz && \
     dnf clean all && rm -rf /var/cache/dnf
 
 ADD target/generated-resources/licenses              /licenses