diff --git a/Kitodo-ImageManagement/src/main/java/org/kitodo/imagemanagement/ImageConverter.java b/Kitodo-ImageManagement/src/main/java/org/kitodo/imagemanagement/ImageConverter.java
index 1f8ad0f3409..702621e5f84 100644
--- a/Kitodo-ImageManagement/src/main/java/org/kitodo/imagemanagement/ImageConverter.java
+++ b/Kitodo-ImageManagement/src/main/java/org/kitodo/imagemanagement/ImageConverter.java
@@ -74,7 +74,9 @@ class ImageConverter {
      *            source image to convert
      */
     ImageConverter(URI imageFileUri) {
-        source = uriToPath(imageFileUri);
+        // Add "[0]" to the path to make sure ImageMagick only uses the "main" image and ignores other,
+        // potential subfiles like embedded thumbnails. Especially relevant for TIFF files.
+        source = uriToPath(imageFileUri) + "[0]";
     }
 
     /**