Merge branch 'hotfix' into 'release/0.6.x'

hotfix: properly remove layers when overwriting

See merge request fforesight/azure-ocr-service!15

azure-ocr-service/azure-ocr-service-processor/build.gradle.kts

@@ -21,7 +21,7 @@ dependencies {
     api("org.apache.commons:commons-math3:3.6.1")
     api("com.amazonaws:aws-java-sdk-kms:1.12.440")
     api("com.google.guava:guava:31.1-jre")
-    api("com.knecon.fforesight:viewer-doc-processor:0.148.0")
+    api("com.knecon.fforesight:viewer-doc-processor:0.177.0")
     api("com.azure:azure-ai-documentintelligence:1.0.0-beta.3")
     api("com.iqser.red.commons:pdftron-logic-commons:2.31.0")
     testImplementation("org.junit.jupiter:junit-jupiter:5.8.1")

azure-ocr-service/azure-ocr-service-processor/src/main/java/com/knecon/fforesight/service/ocr/processor/service/AsyncOcrService.java

@@ -16,6 +16,7 @@ import com.knecon.fforesight.service.ocr.processor.service.imageprocessing.Image
 import com.knecon.fforesight.service.ocr.processor.visualizations.layers.LayerFactory;
 import com.knecon.fforesight.service.ocr.processor.visualizations.layers.OcrResult;
 import com.pdftron.common.PDFNetException;
+import com.pdftron.pdf.Optimizer;
 import com.pdftron.pdf.PDFDoc;
 import com.pdftron.sdf.SDFDoc;
 
@@ -74,6 +75,7 @@ public class AsyncOcrService {
 
         BinaryData docData;
         try (var smallerDoc = extractBatchDocument(pdfDoc, batch)) {
+            Optimizer.optimize(smallerDoc);
             docData = BinaryData.fromBytes(smallerDoc.save(SDFDoc.SaveMode.LINEARIZED, null));
         }
         return docData;