diff --git a/examples/PNG Images/Flash_PNG/Flash_PNG.ino b/examples/PNG Images/Flash_PNG/Flash_PNG.ino
index e602340..91d71bf 100644
--- a/examples/PNG Images/Flash_PNG/Flash_PNG.ino	
+++ b/examples/PNG Images/Flash_PNG/Flash_PNG.ino	
@@ -2,6 +2,10 @@
 // This example renders a png file that is stored in a FLASH array
 // using the PNGdec library (available via library manager).
 
+// Note: The PNGDEC required lots of RAM to work (~40kbytes) so
+// this sketch is will not run on smaller memory processors (e.g.
+// ESP8266, STM32F103 etc.)
+
 // Image files can be converted to arrays using the tool here:
 // https://notisrac.github.io/FileToCArray/
 // To use this tool:
diff --git a/examples/PNG Images/Flash_transparent_PNG/Flash_transparent_PNG.ino b/examples/PNG Images/Flash_transparent_PNG/Flash_transparent_PNG.ino
index 39e09a6..366e329 100644
--- a/examples/PNG Images/Flash_transparent_PNG/Flash_transparent_PNG.ino	
+++ b/examples/PNG Images/Flash_transparent_PNG/Flash_transparent_PNG.ino	
@@ -2,6 +2,10 @@
 // This example renders a png file that is stored in a FLASH array
 // using the PNGdec library (available via library manager).
 
+// Note: The PNGDEC required lots of RAM to work (~40kbytes) so
+// this sketch is will not run on smaller memory processors (e.g.
+// ESP8266, STM32F103 etc.)
+
 // The example png is encoded as ARGB 8 bits per pixel with indexed colour
 // It was created using GIMP and has a transparent background area.
 
diff --git a/examples/PNG Images/LittleFS_PNG/LittleFS_PNG.ino b/examples/PNG Images/LittleFS_PNG/LittleFS_PNG.ino
index 9af73b8..18040b8 100644
--- a/examples/PNG Images/LittleFS_PNG/LittleFS_PNG.ino	
+++ b/examples/PNG Images/LittleFS_PNG/LittleFS_PNG.ino	
@@ -3,6 +3,10 @@
 // ESP32, ESP8266). It renders a png file that is stored in LittleFS
 // using the PNGdec library (available via library manager).
 
+// Note: The PNGDEC required lots of RAM to work (~40kbytes) so
+// this sketch is will not run on smaller memory processors (e.g.
+// ESP8266, STM32F103 etc.)
+
 // The test image is in the sketch "data" folder (press Ctrl+K to see it).
 // You must upload the image to LittleFS using the Arduino IDE Tools Data
 // Upload menu option (you may need to install extra tools for that).
diff --git a/examples/PNG Images/LittleFS_PNG_DMA/LittleFS_PNG_DMA.ino b/examples/PNG Images/LittleFS_PNG_DMA/LittleFS_PNG_DMA.ino
index 5f751c1..f40cdfe 100644
--- a/examples/PNG Images/LittleFS_PNG_DMA/LittleFS_PNG_DMA.ino	
+++ b/examples/PNG Images/LittleFS_PNG_DMA/LittleFS_PNG_DMA.ino	
@@ -3,6 +3,10 @@
 // ESP32, ESP8266). It renders a png file that is stored in LittleFS
 // using the PNGdec library (available via library manager).
 
+// Note: The PNGDEC required lots of RAM to work (~40kbytes) so
+// this sketch is will not run on smaller memory processors (e.g.
+// ESP8266, STM32F103 etc.)
+
 // It uses DMA to send image data to the TFT while the decoding takes
 // place. The processor and display combination must support DMA to
 // run this sketch! The decode time dominates so DMA is mainly an advantage