diff --git a/usage/Image-specifications.md b/usage/Image-specifications.md
index 40cc70e..1313be4 100644
--- a/usage/Image-specifications.md
+++ b/usage/Image-specifications.md
@@ -7,6 +7,8 @@ When incorporating text in images, avoid using anti-aliasing. Rendering fonts wi
 
 When saving the image file, it is recommended to use the maximum or near maximum JPEG quality. This ensures that the image employs 4:4:4 quantization, which maintains sharp transitions between red and white without introducing artifacts. Lower quality JPEGs often use 4:2:0 quantization, which can result in undesirable artifacts and less crisp transitions between colors.
 
+To do this in GIMP, under Export (as jpeg) open Advanced Options and uncheck Progressive and select 4:4:4 from Subsampling.
+
 👎 Wrong image: text rendered on a 24 bit RGB image, saved as standard quality, 300% zoomed for demo:
 ![Wrong image](usage/output-wrong.jpg)