diff --git a/img_png.h b/img_png.h
new file mode 100644
index 0000000..cb20236
--- /dev/null
+++ b/img_png.h
@@ -0,0 +1,6 @@
+#include <stdint.h>
+#include <stdio.h>
+
+const char img_png_signature[] = {0x89, };
+
+uint8_t* img_png_decode (FILE* fp);
diff --git a/main.c b/main.c
new file mode 100644
index 0000000..7600b13
--- /dev/null
+++ b/main.c
@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char** argv) {
+  if(argc != 2) {
+    fprintf(stderr, "Usage: ./imgvwr FILE");
+    exit(EXIT_FAILURE);
+  }
+
+  FILE* fp_image = fopen(argv[1], "rb");
+  if(!fp_image) {
+    perror("Failed to open image!");
+    exit(EXIT_FAILURE);
+  }
+
+  
+}