diff --git a/floatimg.h b/floatimg.h
index 08c69c8..fc0fe62 100644
--- a/floatimg.h
+++ b/floatimg.h
@@ -41,6 +41,7 @@ int   fimg_destroy(FloatImg *fimg);
 int   fimg_print_version(int k);
 void  fimg_printhead(FloatImg *h);
 int   fimg_describe(FloatImg *head, char *txt);
+char *fimg_str_type(int type);
 int   fimg_fileinfo(char *fname, int *datas);
 int   fimg_plot_rgb (FloatImg *head, int x, int y, float r, float g, float b);
 int   fimg_clear(FloatImg *fimg);
diff --git a/lib/fimg-core.c b/lib/fimg-core.c
index d437030..8d272ea 100644
--- a/lib/fimg-core.c
+++ b/lib/fimg-core.c
@@ -24,7 +24,7 @@ switch (type) {
 return 0;
 }
 /* --------------------------------------------------------------------- */
-static char *fimg_str_type(int type)
+char *fimg_str_type(int type)
 {
 switch (type) {
  	case FIMG_TYPE_GRAY:		return "gray";
diff --git a/tools/fimg2pnm.c b/tools/fimg2pnm.c
index 017c1d1..9b589e2 100644
--- a/tools/fimg2pnm.c
+++ b/tools/fimg2pnm.c
@@ -24,8 +24,9 @@ foo = fimg_fileinfos(srcname, infos);
 if (foo) { fprintf(stderr, "'%s' get dims -> %d\n", srcname, foo); }
 
 if (verbosity) {
-	fprintf(stderr, "image '%s' is %d x %d\n",
-				srcname, infos[0], infos[1]);
+	fprintf(stderr, "image '%s' is %d x %d  %s\n",
+				srcname, infos[0], infos[1],
+				fimg_str_type(infos[2]));
 	}
 
 foo = fimg_create_from_dump(srcname, &fimg);
@@ -44,22 +45,51 @@ if(foo) { fprintf(stderr, "%p to '%s' -> %d\n", &fimg, dstname, foo); }
 return 0;
 }
 /* --------------------------------------------------------------------- */
+static void help(int flag)
+{
+if (flag) {
+	fprintf(stderr, "conversion FIMG -> PNM 16 bits\n");
+	fimg_print_version(1);
+	}
+puts("usage :");
+puts("\tfimg2pnm [flags] infile.fimg outfile.pnm");
+}
+/* --------------------------------------------------------------------- */
 int main(int argc, char *argv[])
 {
-int		foo;
+int		foo, opt;
 
-if (3 != argc) {
-	fimg_print_version(1);
-	fprintf(stderr, "usage:\n\t%s foo.fimg bar.pnm\n", argv[0]);
+if (argc == 1) {
+	help(0);
+	exit(0);
+	}
+
+while ((opt = getopt(argc, argv, "v")) != -1) {
+	switch(opt) {
+		case 'v':	verbosity++;		break;
+		case 'h':	help(1);		exit(1);
+		}
+	}
+
+#if DEBUG_LEVEL
+/* mmmm, is it the good way ? */
+printf("argc %d -> %d\n", argc, argc-optind);
+for (foo=optind; foo<argc; foo++) {
+	printf("   %d  %s\n", foo, argv[foo]);
+	}
+#endif
+
+if (2 != argc-optind) {
+	fprintf(stderr, "error: %s need two filenames\n", argv[0]);
 	exit(1);
 	}
 
-if ( 0 != access(argv[1], R_OK|W_OK) ) {	/* fimg is NOT readable */
-	fprintf(stderr, "%s: %s don't exist.\n", argv[0], argv[1]);
+if ( 0 != access(argv[optind], R_OK) ) {	/* fimg is NOT readable */
+	fprintf(stderr, "%s: %s don't exist.\n", argv[0], argv[optind]);
 	exit(2);
 	}
 
-foo = convertir_fimg_en_pnm(argv[1], argv[2], 0);
+foo = convertir_fimg_en_pnm(argv[optind], argv[optind+1], 0);
 if (foo) fprintf(stderr, "conversion -> %d\n", foo);
 
 return 0;
diff --git a/tools/fimgstats.c b/tools/fimgstats.c
index 14ab9b5..d530602 100644
--- a/tools/fimgstats.c
+++ b/tools/fimgstats.c
@@ -75,7 +75,7 @@ if (argc == 1) {
 	foo = fimg_print_version(1); help(0);
 	exit(0);
 	}
- while ((opt = getopt(argc, argv, "cv")) != -1) {
+while ((opt = getopt(argc, argv, "cv")) != -1) {
 	switch(opt) {
 		case 'c':	make_csv++;		break;
 		case 'v':	verbosity++;		break;