diff --git a/ocr-service-v1/ocr-service-server-v1/src/main/java/com/iqser/red/service/ocr/v1/server/service/InvisibleElementRemovalService.java b/ocr-service-v1/ocr-service-server-v1/src/main/java/com/iqser/red/service/ocr/v1/server/service/InvisibleElementRemovalService.java
index a9da1a1..e64c1fd 100644
--- a/ocr-service-v1/ocr-service-server-v1/src/main/java/com/iqser/red/service/ocr/v1/server/service/InvisibleElementRemovalService.java
+++ b/ocr-service-v1/ocr-service-server-v1/src/main/java/com/iqser/red/service/ocr/v1/server/service/InvisibleElementRemovalService.java
@@ -77,6 +77,7 @@ public class InvisibleElementRemovalService {
 
             visitedXObjIds.add(page.getSDFObj().getObjNum());
 
+
             InvisibleElementRemovalContext context = InvisibleElementRemovalContext.builder()
                     .reader(reader)
                     .clippingPathStack(new ClippingPathStack(page.getMediaBox()))
@@ -91,8 +92,6 @@ public class InvisibleElementRemovalService {
             context.visitedXObjIds().clear();
 
             removeOverlappedElements(page, writer, context);
-            reader.end();
-            writer.end();
         }
 
         try {
@@ -227,6 +226,7 @@ public class InvisibleElementRemovalService {
             formWriter.setDefaultGState(context.reader());
 
             processElements(formWriter, context);
+            formWriter.end();
             formWriter.destroy();
             context.reader().end();
         }
@@ -364,6 +364,7 @@ public class InvisibleElementRemovalService {
             formWriter.setDefaultGState(context.reader());
 
             processOverlappedElements(formWriter, context);
+            formWriter.end();
             formWriter.destroy();
             context.reader().end();
         }
diff --git a/ocr-service-v1/ocr-service-server-v1/src/main/java/com/iqser/red/service/ocr/v1/server/service/OCRService.java b/ocr-service-v1/ocr-service-server-v1/src/main/java/com/iqser/red/service/ocr/v1/server/service/OCRService.java
index 5fd671d..01c396e 100644
--- a/ocr-service-v1/ocr-service-server-v1/src/main/java/com/iqser/red/service/ocr/v1/server/service/OCRService.java
+++ b/ocr-service-v1/ocr-service-server-v1/src/main/java/com/iqser/red/service/ocr/v1/server/service/OCRService.java
@@ -1,23 +1,35 @@
 package com.iqser.red.service.ocr.v1.server.service;
 
+import static java.lang.String.format;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.springframework.amqp.rabbit.core.RabbitTemplate;
+import org.springframework.stereotype.Service;
+
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.iqser.red.service.ocr.v1.api.model.OCRStatusUpdateResponse;
 import com.iqser.red.service.ocr.v1.server.configuration.MessagingConfiguration;
 import com.iqser.red.service.ocr.v1.server.settings.OcrServiceSettings;
 import com.pdftron.common.PDFNetException;
-import com.pdftron.pdf.*;
+import com.pdftron.pdf.OCRModule;
+import com.pdftron.pdf.OCROptions;
+import com.pdftron.pdf.Optimizer;
+import com.pdftron.pdf.PDFDoc;
+import com.pdftron.pdf.Page;
+import com.pdftron.pdf.RectCollection;
 import com.pdftron.sdf.SDFDoc;
+
 import io.micrometer.core.annotation.Timed;
 import lombok.RequiredArgsConstructor;
 import lombok.SneakyThrows;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.amqp.rabbit.core.RabbitTemplate;
-import org.springframework.stereotype.Service;
-
-import java.io.*;
-import java.util.Map;
-
-import static java.lang.String.format;
 
 @Slf4j
 @Service
@@ -84,11 +96,15 @@ public class OCRService {
         // So, we need to remove pages without images.
         // Furthermore, creating a new document is *much* faster than reusing the same document and adding/removing pages one by one.
         // Therefore, we create a new Document with a single page for every page that contains an image.
+        // For some reason, if we insert the OCR singlePageDoc into the original PDFDoc inside the loop, for some documents, the RAM Usage increases exponentially with every page.
+        // This is why, we replace the OCRed Pages outside the main loop.
         int numProcessedPages = 0;
+        Map<Integer, PDFDoc> pageIdToSinglePagePdfDoc = new HashMap<>();
         for (Integer pageId : pageIdToRectCollection.keySet()) {
             try {
                 PDFDoc singlePagePdfDoc = extractSinglePagePdfDoc(pdfDoc, pageId);
                 processOcr(pageIdToRectCollection, pageId, singlePagePdfDoc);
+                pageIdToSinglePagePdfDoc.put(pageId, singlePagePdfDoc);
                 ++numProcessedPages;
 
                 log.info("{}/{} Page {} done, OCR regions {}",
@@ -97,9 +113,6 @@ public class OCRService {
                         pageId,
                         getAllOcrTextZonesAsString(pageIdToRectCollection, pageId));
 
-                replaceOriginalPageWithOcrPage(pdfDoc, pageId, singlePagePdfDoc);
-
-                singlePagePdfDoc.close();
 
                 rabbitTemplate.convertAndSend(MessagingConfiguration.OCR_STATUS_UPDATE_RESPONSE_QUEUE,
                         objectMapper.writeValueAsString(OCRStatusUpdateResponse.builder()
@@ -113,6 +126,9 @@ public class OCRService {
                 throw new RuntimeException(e);
             }
         }
+        log.info("Copying {} OCRed Pages into original Document", pageIdToSinglePagePdfDoc.size());
+        pageIdToSinglePagePdfDoc.forEach((pageId, singlePagePdfDoc) -> replaceOriginalPageWithOcrPage(pdfDoc, pageId, singlePagePdfDoc));
+        Optimizer.optimize(pdfDoc);
 
         rabbitTemplate.convertAndSend(MessagingConfiguration.OCR_STATUS_UPDATE_RESPONSE_QUEUE,
                 objectMapper.writeValueAsString(OCRStatusUpdateResponse.builder()
@@ -122,7 +138,6 @@ public class OCRService {
                         .ocrFinished(true)
                         .build()));
 
-        Optimizer.optimize(pdfDoc);
         try {
             pdfDoc.save(out, SDFDoc.SaveMode.LINEARIZED, null);
         } catch (Exception e) {
@@ -154,11 +169,13 @@ public class OCRService {
     }
 
 
-    private static void replaceOriginalPageWithOcrPage(PDFDoc pdfDoc, Integer pageId, PDFDoc ocrPageDoc) throws PDFNetException {
+    @SneakyThrows
+    private static void replaceOriginalPageWithOcrPage(PDFDoc pdfDoc, Integer pageIndex, PDFDoc singlePagePdfDoc) {
 
-        Page ocrPage = ocrPageDoc.getPage(1);
-        pdfDoc.pageInsert(pdfDoc.getPageIterator(pageId), ocrPage);
-        pdfDoc.pageRemove(pdfDoc.getPageIterator(pageId + 1));
+        Page ocrPage = singlePagePdfDoc.getPage(1);
+        pdfDoc.pageInsert(pdfDoc.getPageIterator(pageIndex), ocrPage);
+        pdfDoc.pageRemove(pdfDoc.getPageIterator(pageIndex + 1));
+        singlePagePdfDoc.close();
     }