diff --git a/azure-pipelines-windows-template.yml b/azure-pipelines-windows-template.yml
index 74b6d744..1e5bc4c9 100644
--- a/azure-pipelines-windows-template.yml
+++ b/azure-pipelines-windows-template.yml
@@ -10,7 +10,7 @@ parameters:
 
 jobs:
 - job: ${{ parameters.name }}
-  dependsOn: Initialization
+  dependsOn: CodeFormatValidation
   pool:
     vmImage: 'vs2017-win2016'
   steps:
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 4e6b7200..831b074f 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -10,8 +10,21 @@ jobs:
     vmImage: 'vs2017-win2016'
   steps:
   - template: azure-pipelines-build-number.yml
-- job: Linux
+- job: CodeFormatValidation
   dependsOn: Initialization
+  pool:
+    vmImage: 'macOS-10.14'
+  steps:
+  - script: |
+      brew install clang-format
+    displayName: 'Install dependencies'
+  - script: |
+      cd $(Build.SourcesDirectory)
+      find . \( -name '*.h' -or -name '*.cpp' -or -name '*.c' -or -name '*.mm' -or -name '*.m' \) -print0 | xargs -0 clang-format -style=file -i
+      if [ "$(git diff $(Build.SourceVersion))" != "" ]; then exit 1; fi
+    displayName: 'clang-format'
+- job: Linux
+  dependsOn: CodeFormatValidation
   pool:
     vmImage: 'ubuntu-16.04'
   steps:
@@ -45,7 +58,7 @@ jobs:
       path: $(Build.ArtifactStagingDirectory)
       artifactName: src $(Build.BuildNumber) tarball
 - job: MacOS
-  dependsOn: Initialization
+  dependsOn: CodeFormatValidation
   variables:
   - group: macos-codesign
   pool:
@@ -55,7 +68,6 @@ jobs:
       brew install qt
       brew link qt --force
       brew install create-dmg
-      brew install clang-format
       brew install node
       brew link --overwrite node
       npm install -g appdmg
@@ -63,11 +75,6 @@ jobs:
       tar xjf $(Build.SourcesDirectory)/compressed_archive/p7zip_16.02_src_all.tar.bz2 -C $(Build.SourcesDirectory)/compressed_archive
       mv $(Build.SourcesDirectory)/compressed_archive/p7zip_16.02 $(Build.SourcesDirectory)/compressed_archive/libp7zip
     displayName: 'Install dependencies'
-  - script: |
-      cd $(Build.SourcesDirectory)
-      find . \( -name '*.h' -or -name '*.cpp' -or -name '*.c' -or -name '*.mm' -or -name '*.m' \) -print0 | xargs -0 clang-format -style=file -i
-      if [ "$(git diff $(Build.SourceVersion))" != "" ]; then exit 1; fi
-    displayName: 'Check format'
   - task: InstallAppleCertificate@2
     inputs:
       certSecureFile: 'developerID_application.p12'
@@ -75,7 +82,8 @@ jobs:
   - script: |
       cd $(Build.SourcesDirectory)
       VERSION="$(cat common/yacreader_global.h | grep '#define VERSION "' | tr -d '#define VERSION' | tr -d '"' )"
-      ./compileOSX.sh $VERSION $(Build.BuildNumber)
+      SKIP_CODESIGN="$(tr [A-Z] [a-z] <<< "$(System.PullRequest.IsFork)")"
+      ./compileOSX.sh $VERSION $(Build.BuildNumber) $SKIP_CODESIGN
     displayName: 'Build'
   - task: CopyFiles@2
     inputs:
diff --git a/compileOSX.sh b/compileOSX.sh
index 619b0d6a..e28f47eb 100755
--- a/compileOSX.sh
+++ b/compileOSX.sh
@@ -5,7 +5,9 @@ VERSION=${1:-"9.5.0"}
 
 BUILD_NUMBER=${2:-"0"}
 
-if [ "$3" == "clean" ]; then
+SKIP_CODESIGN=${3:-false}
+
+if [ "$4" == "clean" ]; then
 ./cleanOSX.sh
 fi
 
@@ -35,7 +37,36 @@ cp -R YACReader/YACReader.app YACReader.app
 cp -R YACReaderLibrary/YACReaderLibrary.app YACReaderLibrary.app
 cp -R YACReaderLibraryServer/YACReaderLibraryServer.app YACReaderLibraryServer.app
 
-./releaseOSX.sh
+hash macdeployqt 2>/dev/null || { echo >&2 "macdeployqt command not available. Please add the bin subfolder of your Qt installation  to the PATH environment variable."; exit 1; }
+
+echo "Preparing apps for release ..."
+
+macdeployqt YACReader.app
+macdeployqt YACReaderLibrary.app -qmldir=YACReaderLibrary/qml
+macdeployqt YACReaderLibraryServer.app
+
+mkdir -p YACReader.app/Contents/MacOS/utils
+mkdir -p YACReaderLibrary.app/Contents/MacOS/utils
+mkdir -p YACReaderLibraryServer.app/Contents/MacOS/utils
+
+cp dependencies/qrencode/macx/libqrencode.4.0.0.dylib \
+YACReaderLibrary.app/Contents/MacOS/utils/libqrencode.dylib
+
+cp -R dependencies/7zip/macx/* YACReader.app/Contents/MacOS/utils/
+cp -R dependencies/7zip/macx/* YACReaderLibrary.app/Contents/MacOS/utils/
+cp -R dependencies/7zip/macx/* YACReaderLibraryServer.app/Contents/MacOS/utils/
+
+cp -R release/server YACReaderLibrary.app/Contents/MacOS/
+cp -R release/server YACReaderLibraryServer.app/Contents/MacOS/
+cp -R release/languages YACReader.app/Contents/MacOS/
+cp -R release/languages YACReaderLibrary.app/Contents/MacOS/
+cp -R release/languages YACReaderLibraryServer.app/Contents/MacOS/
+
+if [ "$SKIP_CODESIGN" = false ]; then
+	./signapps.sh
+fi
+
+echo "Preparing apps for release, Done."
 
 echo "Copying to destination folder"
 dest="YACReader-$VERSION.$BUILD_NUMBER MacOSX-Intel"
@@ -61,6 +92,9 @@ sed -i'' -e "s/#VERSION#/$VERSION/g" dmg.json
 sed -i'' -e "s/#BUILD_NUMBER#/$BUILD_NUMBER/g" dmg.json
 appdmg dmg.json "$dest.dmg"
 
-codesign --force --deep --sign "Developer ID Application: LUIS ANGEL SAN MARTIN ROD (9B6KKVW3WM)" "./${dest}.dmg"
+if [ "$SKIP_CODESIGN" = false ]; then
+	echo "Signing dmg"
+	codesign --force --deep --sign "Developer ID Application: LUIS ANGEL SAN MARTIN ROD (9B6KKVW3WM)" "./${dest}.dmg"
+fi
 
 echo "Done!"
diff --git a/releaseOSX.sh b/releaseOSX.sh
deleted file mode 100755
index a5d77a73..00000000
--- a/releaseOSX.sh
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/bin/bash
-set -e
-
-hash macdeployqt 2>/dev/null || { echo >&2 "macdeployqt command not available. Please add the bin subfolder of your Qt installation  to the PATH environment variable."; exit 1; }
-
-echo "Preparing apps for release ..."
-
-macdeployqt YACReader.app
-macdeployqt YACReaderLibrary.app -qmldir=YACReaderLibrary/qml
-macdeployqt YACReaderLibraryServer.app
-
-mkdir -p YACReader.app/Contents/MacOS/utils
-mkdir -p YACReaderLibrary.app/Contents/MacOS/utils
-mkdir -p YACReaderLibraryServer.app/Contents/MacOS/utils
-
-cp dependencies/qrencode/macx/libqrencode.4.0.0.dylib \
-YACReaderLibrary.app/Contents/MacOS/utils/libqrencode.dylib
-
-cp -R dependencies/7zip/macx/* YACReader.app/Contents/MacOS/utils/
-cp -R dependencies/7zip/macx/* YACReaderLibrary.app/Contents/MacOS/utils/
-cp -R dependencies/7zip/macx/* YACReaderLibraryServer.app/Contents/MacOS/utils/
-
-cp -R release/server YACReaderLibrary.app/Contents/MacOS/
-cp -R release/server YACReaderLibraryServer.app/Contents/MacOS/
-cp -R release/languages YACReader.app/Contents/MacOS/
-cp -R release/languages YACReaderLibrary.app/Contents/MacOS/
-cp -R release/languages YACReaderLibraryServer.app/Contents/MacOS/
-
-./signapps.sh
-
-echo "Done."
-
diff --git a/signapps.sh b/signapps.sh
index 32685626..d3f6e71c 100755
--- a/signapps.sh
+++ b/signapps.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+echo "Signing apps"
+
 codesign --force --deep --sign "Developer ID Application: LUIS ANGEL SAN MARTIN ROD (9B6KKVW3WM)" ./YACReader.app
 codesign --force --deep --sign "Developer ID Application: LUIS ANGEL SAN MARTIN ROD (9B6KKVW3WM)" ./YACReaderLibrary.app
 codesign --force --deep --sign "Developer ID Application: LUIS ANGEL SAN MARTIN ROD (9B6KKVW3WM)" ./YACReaderLibraryServer.app