diff --git a/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/classification/service/ClassificationService.java b/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/classification/service/ClassificationService.java
index e18705f4..a418ece2 100644
--- a/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/classification/service/ClassificationService.java
+++ b/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/classification/service/ClassificationService.java
@@ -70,9 +70,9 @@ public class ClassificationService {
         }
         if (textBlock.getText().length() > 5 && (textBlock.getMostPopularWordHeight() > document.getTextHeightCounter().getMostPopular() || textBlock.getMostPopularWordFontSize() > document.getFontSizeCounter().getMostPopular()) && PositionUtils.getApproxLineCount(textBlock) < 5.9
 
-                && ((textBlock.getMostPopularWordStyle().contains("bold") && Character.isDigit(textBlock.toString().charAt(0)) && !matcher2.matches() && !textBlock.toString().contains(":")
+                && (textBlock.getMostPopularWordStyle().contains("bold") && Character.isDigit(textBlock.toString().charAt(0)) && !matcher2.matches() && !textBlock.toString().contains(":")
                 || textBlock.toString().equals(textBlock.toString().toUpperCase(Locale.ROOT)) && !matcher2.matches() && !textBlock.toString().contains(":")
-                || textBlock.toString().startsWith("APPENDIX") || textBlock.toString().startsWith("TABLE")) && !textBlock.toString().endsWith(":"))) {
+                || textBlock.toString().startsWith("APPENDIX") || textBlock.toString().startsWith("TABLE")) && !textBlock.toString().endsWith(":")) {
             textBlock.setClassification("H 1");
             document.setHeadlines(true);
 
diff --git a/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/redaction/model/SearchableText.java b/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/redaction/model/SearchableText.java
index ee3d80a1..09aa1c30 100644
--- a/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/redaction/model/SearchableText.java
+++ b/redaction-service-v1/redaction-service-server-v1/src/main/java/com/iqser/red/service/redaction/v1/server/redaction/model/SearchableText.java
@@ -14,6 +14,8 @@ import java.util.Comparator;
 import java.util.List;
 import java.util.stream.Collectors;
 
+import org.apache.pdfbox.util.QuickSort;
+
 import lombok.Getter;
 
 public class SearchableText {
@@ -217,8 +219,10 @@ public class SearchableText {
 
     public String getAsStringWithLinebreaksSorted(List<TextPositionSequence> sequences) {
 
-        var sorted = sequences.stream()
-                .sorted(new TextPositionSequenceComparator())
+        var quickSorted = new ArrayList<>(sequences);
+        QuickSort.sort(quickSorted, new TextPositionSequenceComparator());
+
+        var sorted = quickSorted.stream()
                 .sorted(Comparator.comparing(a -> a.getPage()))
                 .collect(Collectors.toList());