diff --git a/.github/actions/samples-copyright-checker/samples-copyright-checker.sh b/.github/actions/samples-copyright-checker/samples-copyright-checker.sh
index cae0811..b602047 100644
--- a/.github/actions/samples-copyright-checker/samples-copyright-checker.sh
+++ b/.github/actions/samples-copyright-checker/samples-copyright-checker.sh
@@ -4,31 +4,43 @@ DIRECTORY="$1"
 FILE_EXTENSIONS="$2"
 BASE_COPYRIGHT="$3"
 
+# Get list of files changed in the PR compared to the base branch
+CHANGED_FILES=$(git diff --name-only origin/"$GITHUB_BASE_REF"...HEAD)
+
+echo "Files changed in this PR:"
+echo "$CHANGED_FILES"
+
 for ext in $FILE_EXTENSIONS; do
     for file in $(find . -type f -name "$ext" -path "$DIRECTORY*"); do
-        echo "Processing file: $file"  
-        
-        LAST_MODIFIED_YEAR=$(git log --follow -1 --format="%ad" --date=format:"%Y" -- "$file")
+        # Remove ./ from start of file string
+        file=${file#./}
+
+        # Process file if it has been changed in PR
+        if echo "$CHANGED_FILES" | grep -qx "$file"; then
+            echo "Processing file: $file"  
+            
+            LAST_MODIFIED_YEAR=$(git log --follow -1 --format="%ad" --date=format:"%Y" -- "$file")
 
-        if ! grep -q "Copyright" "$file"; then
-            echo -e "/**\n * $BASE_COPYRIGHT\n */\n$(cat "$file")" > "$file"
-        else
-            # Extract existing copyright line
-            CURRENT_COPYRIGHT=$(grep -o "Copyright IBM Corp. [0-9]\{4\}\(, [0-9]\{4\}\)\?" "$file")
+            if ! grep -q "Copyright" "$file"; then
+                echo -e "/**\n * $BASE_COPYRIGHT\n */\n$(cat "$file")" > "$file"
+            else
+                # Extract existing copyright line
+                CURRENT_COPYRIGHT=$(grep -o "Copyright IBM Corp. [0-9]\{4\}\(, [0-9]\{4\}\)\?" "$file")
 
-            ORIGINAL_YEAR=$(echo "$CURRENT_COPYRIGHT" | grep -o "[0-9]\{4\}" | head -1)
-        
-            # Check if LAST_MODIFIED_YEAR is anywhere in current copyright
-            if [[ "$CURRENT_COPYRIGHT" != *"$LAST_MODIFIED_YEAR"* ]]; then
-                # Check if copyright has two years
-                if [[ "$CURRENT_COPYRIGHT" =~ ,\ [0-9]{4}$ ]]; then
-                    # If there is already a second year, replace it
-                    sed -i "s/Copyright IBM Corp. $ORIGINAL_YEAR, [0-9]\{4\}/Copyright IBM Corp. $ORIGINAL_YEAR, $LAST_MODIFIED_YEAR/" "$file"
-                else
-                    # If there is no second year, add it
-                    sed -i "s/$CURRENT_COPYRIGHT/$CURRENT_COPYRIGHT, $LAST_MODIFIED_YEAR/" "$file"
+                ORIGINAL_YEAR=$(echo "$CURRENT_COPYRIGHT" | grep -o "[0-9]\{4\}" | head -1)
+            
+                # Check if LAST_MODIFIED_YEAR is anywhere in current copyright
+                if [[ "$CURRENT_COPYRIGHT" != *"$LAST_MODIFIED_YEAR"* ]]; then
+                    # Check if copyright has two years
+                    if [[ "$CURRENT_COPYRIGHT" =~ ,\ [0-9]{4}$ ]]; then
+                        # If there is already a second year, replace it
+                        sed -i "s/Copyright IBM Corp. $ORIGINAL_YEAR, [0-9]\{4\}/Copyright IBM Corp. $ORIGINAL_YEAR, $LAST_MODIFIED_YEAR/" "$file"
+                    else
+                        # If there is no second year, add it
+                        sed -i "s/$CURRENT_COPYRIGHT/$CURRENT_COPYRIGHT, $LAST_MODIFIED_YEAR/" "$file"
+                    fi
                 fi
             fi
-        fi
+        fi    
     done
 done
\ No newline at end of file