diff --git a/README.md b/README.md
index df52efd..229f0fb 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,12 @@
 
 This project utilizes an ELECROW ESP32 Display to read images from SD card and display them.
 
+## Disclaimer
+
+To ensure good results and no image load fails pass the images at least through [helpers/resize.py](helpers/resize.py).  
+If the images are progressive jpegs use [helpers/progressive_to_normal_jpeg.sh](helpers/progressive_to_normal_jpeg.sh) first.  
+See [Helper README](helper/README.md) for usage advice.
+
 ## Usage
 
 Insert SD card into the TF slot on the board. Flash the project to the ESP32. Use touch to switch between UI-Log and Image-Browser.