diff --git a/tools/osx/macosx_bundle.sh b/tools/osx/macosx_bundle.sh
index cb8839455..e4476c5e7 100644
--- a/tools/osx/macosx_bundle.sh
+++ b/tools/osx/macosx_bundle.sh
@@ -76,10 +76,7 @@ if [[ -z "${MINIMUM_SYSTEM_VERSION}" ]]; then
     MINIMUM_SYSTEM_VERSION="$(sw_vers -productVersion | cut -d. -f-2)"
 fi
 
-case ${PROC_BIT_DEPTH} in
-    64) arch=x86_64;;
-    32) arch=i386;;
-esac
+arch=x86_64
 
 cat <<__EOS__
 PROJECT_NAME:           ${PROJECT_NAME}
@@ -131,8 +128,8 @@ msg "Copying configuration files from ${GTK_PREFIX}:"
 install -d "${ETC}/gtk-3.0"
 
 # Make Frameworks folder flat
-mv "${LIB}"/gdk-pixbuf-2.0/2*/loaders/*.so "${LIB}"
-mv "${LIB}"/gtk-3.0/3*/immodules/*.so "${LIB}"
+ditto "${LIB}"/gdk-pixbuf-2.0/2*/loaders/*.so "${LIB}"
+ditto "${LIB}"/gtk-3.0/3*/immodules/*.so "${LIB}"
 # the print*.so lead to errors when running gtk-query-immodules-3.0, just seeing what the app does without, since they are not in immodules
 # and including them leads to errors and a completely empty gtk.immodules file
 # mv "${LIB}"/gtk-3.0/3*/printbackends/*.so "${LIB}"
@@ -144,11 +141,11 @@ rm -r "${LIB}"/gdk-pixbuf-2.0
 sed -i "" -e "s|${PWD}/RawTherapee.app/Contents/|/Applications/RawTherapee.app/Contents/|" "${ETC}/gtk-3.0/gdk-pixbuf.loaders" "${ETC}/gtk-3.0/gtk.immodules"
 
 mkdir -p ${RESOURCES}/share/glib-2.0
-cp -pRL {"${LOCAL_PREFIX}/local","${RESOURCES}"}/share/glib-2.0/schemas
+ditto {"${LOCAL_PREFIX}/local","${RESOURCES}"}/share/glib-2.0/schemas
 "${LOCAL_PREFIX}/local/bin/glib-compile-schemas" "${RESOURCES}/share/glib-2.0/schemas"
 
 msg "Copying shared files from ${GTK_PREFIX}:"
-cp -pRL {"${LOCAL_PREFIX}/local","${RESOURCES}"}/share/mime
+ditto {"${LOCAL_PREFIX}/local","${RESOURCES}"}/share/mime
 
 # GTK3 themes
 ditto {"${LOCAL_PREFIX}/local","${RESOURCES}"}/share/themes/Mac/gtk-3.0/gtk-keys.css
@@ -157,33 +154,33 @@ ditto {"${LOCAL_PREFIX}/local","${RESOURCES}"}/share/themes/Default/gtk-3.0/gtk-
 iconfolders=("16x16/actions" "16x16/devices" "16x16/mimetypes" "16x16/places" "16x16/status" "48x48/devices")
 for f in "${iconfolders[@]}"; do
     mkdir -p ${RESOURCES}/share/icons/Adwaita/${f}
-    cp ${LOCAL_PREFIX}/local/share/icons/Adwaita/${f}/* "${RESOURCES}"/share/icons/Adwaita/${f}
+    ditto ${LOCAL_PREFIX}/local/share/icons/Adwaita/${f}/* "${RESOURCES}"/share/icons/Adwaita/${f}
 done
 ditto {"${LOCAL_PREFIX}/local","${RESOURCES}"}/share/icons/Adwaita/index.theme
 "${LOCAL_PREFIX}/local/bin/gtk-update-icon-cache" "${RESOURCES}/share/icons/Adwaita"
 
-# Copy libjpeg-turbo into the app bundle
-cp ${LOCAL_PREFIX}/local/lib/libjpeg.*.dylib "${CONTENTS}/Frameworks"
+# Copy libjpeg-turbo ("62") into the app bundle
+ditto ${LOCAL_PREFIX}/local/lib/libjpeg.62.dylib "${CONTENTS}/Frameworks/libjpeg.62.dylib"
 
 # Copy libexpat into the app bundle (which is keg-only)
 
-if [[ -d /usr/local/Cellar/expat ]]; then cp /usr/local/Cellar/expat/*/lib/libexpat.1.dylib "${CONTENTS}/Frameworks"; else cp "${EXPATLIB}" "${CONTENTS}/Frameworks"; fi
+if [[ -d /usr/local/Cellar/expat ]]; then ditto /usr/local/Cellar/expat/*/lib/libexpat.1.dylib "${CONTENTS}/Frameworks"; else ditto "${EXPATLIB}" "${CONTENTS}/Frameworks"; fi
 
 # Copy libz into the app bundle
-cp /usr/lib/libz.1.dylib "${CONTENTS}/Frameworks"
+ditto ${LOCAL_PREFIX}/local/lib/libz.1.dylib "${CONTENTS}/Frameworks"
 
-# Copy libtiff into the app bundle
-cp ${LOCAL_PREFIX}/local/lib/libtiff.5.dylib "${CONTENTS}/Frameworks"
+# Copy libtiff 5 into the app bundle
+ditto ${LOCAL_PREFIX}/local/lib/libtiff.5.dylib "${CONTENTS}/Frameworks/libtiff.5.dylib"
 
 # Copy the Lensfun database into the app bundle
 mkdir -p "${RESOURCES}/share/lensfun"
-cp ${LOCAL_PREFIX}/local/share/lensfun/version_2/* "${RESOURCES}/share/lensfun"
+ditto ${LOCAL_PREFIX}/local/share/lensfun/version_2/* "${RESOURCES}/share/lensfun"
 
 # Copy liblensfun to Frameworks
-cp ${LOCAL_PREFIX}/local/lib/liblensfun.2.dylib "${CONTENTS}/Frameworks"
+ditto ${LOCAL_PREFIX}/local/lib/liblensfun.2.dylib "${CONTENTS}/Frameworks"
 
 # Copy libomp to Frameworks
-cp ${LOCAL_PREFIX}/local/lib/libomp.dylib "${CONTENTS}/Frameworks"
+ditto ${LOCAL_PREFIX}/local/lib/libomp.dylib "${CONTENTS}/Frameworks"
 
 # Install names
 find -E "${CONTENTS}" -type f -regex '.*/(rawtherapee-cli|rawtherapee|.*\.(dylib|so))' | while read -r x; do
@@ -198,9 +195,7 @@ find -E "${CONTENTS}" -type f -regex '.*/(rawtherapee-cli|rawtherapee|.*\.(dylib
     } | bash -v
 done
 
-msg "Registering @loader_path into the executable:"
-echo "   install_name_tool -add_rpath @executable_path/../../Frameworks '${EXECUTABLE}'" | bash -v
-echo "   install_name_tool -add_rpath @loader_path/../Frameworks '${EXECUTABLE}-cli'" | bash -v
+
 
 msg "Installing required application bundle files:"
 PROJECT_SOURCE_DATA_DIR="${PROJECT_SOURCE_DIR}/tools/osx"
@@ -208,34 +203,46 @@ ditto "${PROJECT_SOURCE_DIR}/build/Resources" "${RESOURCES}"
 # Executable loader
 # Note: executable is renamed to 'rawtherapee-bin'.
 mkdir "${MACOS}/bin"
-mv "${MACOS}/rawtherapee" "${MACOS}/bin/rawtherapee-bin"
+ditto "${MACOS}/rawtherapee" "${MACOS}/bin/rawtherapee-bin"
+rm "${MACOS}/rawtherappe"
 install -m 0755 "${PROJECT_SOURCE_DATA_DIR}/executable_loader.in" "${MACOS}/rawtherapee"
 # App bundle resources
-cp "${PROJECT_SOURCE_DATA_DIR}/"{rawtherapee,profile}.icns "${RESOURCES}"
-cp "${PROJECT_SOURCE_DATA_DIR}/PkgInfo" "${CONTENTS}"
+ditto "${PROJECT_SOURCE_DATA_DIR}/"{rawtherapee,profile}.icns "${RESOURCES}"
+ditto "${PROJECT_SOURCE_DATA_DIR}/PkgInfo" "${CONTENTS}"
 install -m 0644 "${PROJECT_SOURCE_DATA_DIR}/Info.plist.in" "${CONTENTS}/Info.plist"
 install -m 0644 "${PROJECT_SOURCE_DATA_DIR}/Info.plist-bin.in" "${CONTENTS}/MacOS/bin/Info.plist"
 sed -i "" -e "s|@version@|${PROJECT_FULL_VERSION}|
 s|@shortVersion@|${PROJECT_VERSION}|
 s|@arch@|${arch}|" \
     "${CONTENTS}/Info.plist"
-plutil -convert binary1 "${CONTENTS}/Info.plist"
-plutil -convert binary1 "${CONTENTS}/MacOS/bin/Info.plist"
+plutil -convert xml1 "${CONTENTS}/Info.plist"
+plutil -convert xml1 "${CONTENTS}/MacOS/bin/Info.plist"
+update-mime-database -V  "${CONTENTS}/Resources/share/mime"
+
+msg "Registering @rpath into the executable:"
+echo "   install_name_tool -add_rpath /Applications/RawTherapee.app/Contents/Frameworks '${MACOS}/bin/rawtherapee-bin'" | bash -v
+echo "   install_name_tool -add_rpath /Applications/RawTherapee.app/Contents/Frameworks '${EXECUTABLE}-cli'" | bash -v
+
 # Sign the app
 CODESIGNID="$(cmake .. -LA -N | grep "CODESIGNID" | cut -d "=" -f2)"
 if ! test -z "$CODESIGNID" ; then
 install -m 0644 "${PROJECT_SOURCE_DATA_DIR}/rt.entitlements" "${CONTENTS}/Entitlements.plist"
-plutil -convert binary1 "${CONTENTS}/Entitlements.plist"
+plutil -convert xml1 "${CONTENTS}/Entitlements.plist"
 install -m 0644 "${PROJECT_SOURCE_DATA_DIR}/rt-bin.entitlements" "${CONTENTS}/MacOS/bin/Entitlements.plist"
-plutil -convert binary1 "${CONTENTS}/MacOS/bin/Entitlements.plist"
-codesign -v -s "${CODESIGNID}" -i "com.rawtherapee.rawtherapee-bin" --timestamp -o runtime --entitlements "${APP}/Contents/MacOS/bin/Entitlements.plist" "${APP}/Contents/MacOS/bin/rawtherapee-bin"
-codesign --deep --preserve-metadata=identifier,entitlements,runtime --strict -v -s "${CODESIGNID}" -i "com.rawtherapee.rawtherapee" --timestamp -o runtime --entitlements "${APP}/Contents/Entitlements.plist" "${APP}"
-    spctl -a -vvvv "${APP}"
+plutil -convert xml1 "${CONTENTS}/MacOS/bin/Entitlements.plist"
+codesign -v -s "${CODESIGNID}" -i "com.rawtherapee.rawtherapee-bin" -o runtime --timestamp --entitlements "${APP}/Contents/MacOS/bin/Entitlements.plist" "${APP}/Contents/MacOS/bin/rawtherapee-bin"
+for frameworklibs in ${CONTENTS}/Frameworks/* ; do
+    codesign -v -s "${CODESIGNID}" -i "com.rawtherapee.rawtherapee-bin" -o runtime --timestamp "${frameworklibs}"
+done
+codesign --deep --preserve-metadata=identifier,entitlements,runtime --timestamp --strict -v -s "${CODESIGNID}" -i "com.rawtherapee.rawtherapee" -o runtime --entitlements "${CONTENTS}/Entitlements.plist" "${APP}"
+spctl -a -vvvv "${APP}"
 fi
 
 # Notarize the app
+
 NOTARY="$(cmake .. -LA -N | grep "NOTARY" | cut -d "=" -f2)"
 if ! test -z "$NOTARY" ; then
+    msg "Notarizing the application:"
     ditto -c -k --sequesterRsrc --keepParent "${APP}" "${APP}.zip"
     uuid=`xcrun altool --notarize-app --primary-bundle-id "com.rawtherapee.rawtherapee" ${NOTARY} --file "${APP}.zip" 2>&1 | grep 'RequestUUID' | awk '{ print $3 }'`
     echo "Result= $uuid" # Display identifier string
@@ -264,8 +271,8 @@ function CreateDmg {
     local srcDir="$(mktemp -dt $$)"
 
     msg "Preparing disk image sources at ${srcDir}:"
-    cp -R "${APP}" "${srcDir}"
-    cp AboutThisBuild.txt "${srcDir}"
+    ditto -R "${APP}" "${srcDir}"
+    ditto AboutThisBuild.txt "${srcDir}"
     ln -s /Applications "${srcDir}"
 
     # Web bookmarks
@@ -292,7 +299,9 @@ function CreateDmg {
         fi
 
     # Notarize the dmg
-    if ! test -z "$NOTARY" ; then
+      
+        if ! test -z "$NOTARY" ; then
+        msg "Notarizing the dmg:"
         zip "${dmg_name}.dmg.zip" "${dmg_name}.dmg"
         uuid=`xcrun altool --notarize-app --primary-bundle-id "com.rawtherapee" ${NOTARY} --file "${dmg_name}.dmg.zip" 2>&1 | grep 'RequestUUID' | awk '{ print $3 }'`
         echo "dmg Result= $uuid" # Display identifier string
@@ -316,9 +325,11 @@ function CreateDmg {
             fi
         done
     fi
+    
+    
+# Zip disk image for redistribution
+    msg "Zipping disk image for redistribution:"
 
-
-    # Zip disk image for redistribution
     zip "${dmg_name}.zip" "${dmg_name}.dmg" AboutThisBuild.txt
     rm "${dmg_name}.dmg"