diff --git a/img2cpi.c b/img2cpi.c
index defe99f..790df88 100644
--- a/img2cpi.c
+++ b/img2cpi.c
@@ -139,52 +139,6 @@ int main(int argc, char **argv) {
     fprintf(stderr, "Fatal error occurred, exiting.\n");
     return EXIT_FAILURE;
   }
-
-  printf("fast_mode = %s\n", args.fast_mode ? "true" : "false");
-  printf("size = %dx%d\n", args.width, args.height);
-  printf("version = %s\n",
-      args.cpi_version == CPI_VERSION_AUTO ? "AUTO" : (
-        args.cpi_version == CPI_VERSION_RAW ? "RAW" : (
-          args.cpi_version == CPI_VERSION_0 ? "0" : (
-            args.cpi_version == CPI_VERSION_1 ? "1" : (
-              args.cpi_version == CPI_VERSION_2 ? "2" : (
-                "UNKNOWN"
-                )
-              )
-            )
-          )
-        ));
-  printf("placement = %s\n",
-      args.placement == PLACEMENT_CENTER ? "CENTER" : (
-        args.placement == PLACEMENT_COVER ? "COVER" : (
-          args.placement == PLACEMENT_TILE ? "TILE" : (
-            args.placement == PLACEMENT_FULL ? "FULL" : (
-              args.placement == PLACEMENT_EXTEND ? "EXTEND" : (
-                args.placement == PLACEMENT_FILL ? "FILL" : (
-                  "UNKNOWN"
-                  )
-                )
-              )
-            )
-          )
-        ));
-  printf("palette = %s => %s\n",
-      args.palette_type == PALETTE_DEFAULT ? "DEFAULT" : (
-        args.palette_type == PALETTE_DEFAULT_GRAY ? "DEFAULTGRAY" : (
-          args.palette_type == PALETTE_AUTO ? "AUTO" : (
-            args.palette_type == PALETTE_PATH ? "PATH" : (
-              args.palette_type == PALETTE_LIST ? "LIST" : (
-                "UNKNOWN"
-                )
-              )
-            )
-          )
-        ),
-        args.palette
-      );
-  printf("input: %s\n", args.input_path);
-  printf("output: %s\n", args.output_path);
-
   struct image *src_image = image_load(args.input_path);
   if (!src_image) {
     fprintf(stderr, "Error: failed to open the file\n");
@@ -220,8 +174,11 @@ int main(int argc, char **argv) {
     int new_w, new_h;
     get_size_keep_aspect(src_image->w, src_image->h, canvas->w, canvas->h, &new_w, &new_h);
 
-    printf("new size: %dx%d\n", new_w, new_h);
     scaled_image = image_resize(src_image, new_w, new_h);
+    if (!scaled_image) {
+      fprintf(stderr, "Error: failed to open the file\n");
+      return EXIT_FAILURE;
+    }
   }
 
   // TODO: position image properly
@@ -238,6 +195,10 @@ int main(int argc, char **argv) {
   struct cc_char *characters = calloc(args.width * args.height, sizeof(struct cc_char));
 
   struct image_pal *quantized_image = image_quantize(canvas, palette, 16);
+  if (!quantized_image) {
+    fprintf(stderr, "Error: failed to open the file\n");
+    return EXIT_FAILURE;
+  }
 
   FILE *tmp = fopen("/tmp/img.raw", "wb");
   for (int i = 0; i < quantized_image->w * quantized_image->h; i++) {