diff --git a/Tools/tga_incrust.c b/Tools/tga_incrust.c
index b7b9782..ea19761 100644
--- a/Tools/tga_incrust.c
+++ b/Tools/tga_incrust.c
@@ -42,7 +42,7 @@ fprintf(stderr, "* TGA incrustator  v 0.1.3 [%s] %s \n",
 				TGA_OUTILS_VERSION, TGA_OUTILS_COPYLEFT);
 fprintf(stderr, "  compiled %s at %s\n", __DATE__, __TIME__);
 
-fprintf(stderr, "usage:\n\ttga_incrust orig insert mode out\n");
+fprintf(stderr, "usage:\n\ttga_incrust <orig.tga> <insert.tga> MODE <out.tga>\n");
 
 if (flag) {
 	Image_print_version(0);
diff --git a/Tools/tga_to_text.c b/Tools/tga_to_text.c
index 7fb3935..e26e285 100644
--- a/Tools/tga_to_text.c
+++ b/Tools/tga_to_text.c
@@ -11,21 +11,27 @@
 #include  "tga_outils.h"
 
 /*::------------------------------------------------------------------::*/
-
+/*
+ *	Print a textual form of a picture, so you can read it
+ *	with a software who can't read TGA files.
+ *	Exemples: Fortran or Basic code, R, the statistic
+ *	software. And maybe you cant write a shell script
+ *	to convert from TGA to PNM :)
+ */
 int printf_this_picture(Image_Desc *pic, int flag)
 {
 int		x, y,	r, g, b;
 
 if (flag) {
-	/* needed for easy import in R */
+	/* needed for easy import in Rstats */
 	printf("    X     Y      R    G    B\n");
 	}
 
 for (y=0; y<pic->height; y++) {
 	for (x=0; x<pic->width; x++) {
-		printf("%5d %5d   ", x, y);
+		printf("%5d %5d    ", x, y);
 		Image_getRGB(pic, x, y, &r, &g, &b);
-		printf("%4d %4d %4d\n", r, g, b);
+		printf("%3d %3d %3d\n", r, g, b);
 		}
 	}