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 d3b9324..b370016 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
@@ -69,10 +69,11 @@ public class OCRService {
             long start = System.currentTimeMillis();
 
             try (InputStream fileStream = fileStorageService.getOriginalFileAsStream(dossierId, fileId)) {
+                log.info("Start invisible element removal for file with dossierId {} and fileId {}", dossierId, fileId);
                 invisibleElementRemovalService.removeInvisibleElements(fileStream, transferOutputStream, false);
             }
             long end = System.currentTimeMillis();
-            log.info("Invisible element removal successful for file with dossierId {} and fileId {}, took {}s", dossierId, fileId, format("%.1f", (float) ((end - start) / 1000)));
+            log.info("Invisible element removal successful for file with dossierId {} and fileId {}, took {}s", dossierId, fileId, format("%.1f", (end - start) / 1000.0));
             try (InputStream transferInputStream = new ByteArrayInputStream(transferOutputStream.toByteArray())) {
                 runOcr(transferInputStream, out, fileId);
             }
@@ -93,12 +94,12 @@ public class OCRService {
         Map<Integer, RectCollection> pageIdToRectCollection = imagePositionRetrievalService.getImagePositionPerPage(pdfDoc, true);
 
         int numProcessedPages = 0;
+        // optimization: only scanning pages that contain images
         for (Integer pageId : pageIdToRectCollection.keySet()) {
             try {
                 // optimization: creating a new document is faster than reusing the same and adding/removing pages one by one
                 OCROptions options = new OCROptions();
                 PDFDoc ocrPageDoc = new PDFDoc();
-                // optimization: only scanning pages that contain images
                 Page pdfPage = pdfDoc.getPage(pageId);
                 // optimization: this line ensures the ocr text is placed correctly by PDFTron
                 pdfPage.setMediaBox(pdfPage.getCropBox());