diff --git a/rest/index.php b/rest/index.php
index 7060d7c9876b467fd3bb4bd8291722477f4e8085..7f892ea7a8e1c7515bab5167872fde838c3b9c22 100755
--- a/rest/index.php
+++ b/rest/index.php
@@ -26,7 +26,7 @@ if (file_exists("custom/{$customId}/src/core/lang/lang-{$language}.php")) {
 require_once("src/core/lang/lang-{$language}.php");
 
 
-$app = new \Slim\App(['settings' => ['displayErrorDetails' => true, 'determineRouteBeforeAppMiddleware' => true, 'addContentLengthHeader' => false ]]);
+$app = new \Slim\App(['settings' => ['displayErrorDetails' => true, 'determineRouteBeforeAppMiddleware' => true, 'addContentLengthHeader' => true ]]);
 
 //Authentication
 $app->add(function (\Slim\Http\Request $request, \Slim\Http\Response $response, callable $next) {
diff --git a/src/frontend/app/viewer/document-viewer.component.ts b/src/frontend/app/viewer/document-viewer.component.ts
index 0db6222696ff290c3f21cb94b7943af9b2a3b10f..e4fc00a429ae52204e86c2b60c5fde9cb3aadc78 100644
--- a/src/frontend/app/viewer/document-viewer.component.ts
+++ b/src/frontend/app/viewer/document-viewer.component.ts
@@ -218,12 +218,12 @@ export class DocumentViewerComponent implements OnInit {
             switch (event.type) {
                 case HttpEventType.DownloadProgress:
 
-                    this.loadingInfo.mode = 'indeterminate';
-
-                    const kbLoaded = Math.round(event.loaded / 125);
-                    this.loadingInfo.message = `${this.lang.downloadConvertedFile}... ${kbLoaded} Ko`;
+                    const downloadProgress = Math.round(100 * event.loaded / event.total);
+                    this.loadingInfo.percent = downloadProgress;
+                    this.loadingInfo.mode = 'determinate';
+                    this.loadingInfo.message = `3/3 ${this.lang.downloadConvertedFile}...`;
                     
-                    return { status: 'progress', message: '' };
+                    return { status: 'progress', message: downloadProgress };
 
                 case HttpEventType.UploadProgress:
                     const progress = Math.round(100 * event.loaded / event.total);
@@ -231,10 +231,10 @@ export class DocumentViewerComponent implements OnInit {
 
                     if (progress === 100) {
                         this.loadingInfo.mode = 'indeterminate';
-                        this.loadingInfo.message = `${this.lang.convertingFile}...`;
+                        this.loadingInfo.message = `2/3 ${this.lang.convertingFile}...`;
                     } else {
                         this.loadingInfo.mode = 'determinate';
-                        this.loadingInfo.message = `${this.lang.loadingFile}...`;
+                        this.loadingInfo.message = `1/3 ${this.lang.loadingFile}...`;
                     }
                     return { status: 'progress', message: progress };