diff --git a/src/main/java/eu/transkribus/interfaces/types/util/ImageUtils.java b/src/main/java/eu/transkribus/interfaces/types/util/ImageUtils.java
index 5a4a5d1..9d9397b 100644
--- a/src/main/java/eu/transkribus/interfaces/types/util/ImageUtils.java
+++ b/src/main/java/eu/transkribus/interfaces/types/util/ImageUtils.java
@@ -112,6 +112,7 @@ public static BufferedImage convertToBufferedImage(URL u) throws IOException {
     }
     
     public static BufferedImage read(URL u) throws IOException {
+    	//TODO always try ImageIO::read first and only loop through all readers if null is returned.
     	if(USE_IMAGE_IO_READ_IMPL) {
     		return ImageIO.read(u);
     	} else {
@@ -128,6 +129,7 @@ public static BufferedImage read(URL u) throws IOException {
     }
     
     public static BufferedImage read(File f) throws IOException {
+    	//TODO always try ImageIO::read first and only loop through all readers if null is returned.
     	if(USE_IMAGE_IO_READ_IMPL) {
     		return ImageIO.read(f);
     	} else {