Update log messages and set a more dynamic image resize up to a limit

scripts/resize-img

@@ -4,15 +4,13 @@ import sys
 
 
 def main():
-    target_width = 2048
-
     argn = len(sys.argv)
 
     if argn == 1:
-        print("You must specify an input file")
+        print("Error: You must specify an input file")
         exit(1)
     elif argn == 2:
-        print("You must specify an output file")
+        print("Error: You must specify an output file")
         exit(1)
 
     input_image_path = sys.argv[1]
@@ -21,10 +19,12 @@ def main():
     try:
         image = Image.open(input_image_path)
     except IOError:
-        print(f"Cannot open image file {input_image_path}")
+        print(f"Error: Cannot open image file {input_image_path}")
+        image.close()
         exit(1)
 
     width, height = image.size
+    target_width = int(max(width/4, 1280))
     new_height = int(target_width * height / width)
 
     image = image.resize((target_width, new_height), Image.Resampling.BICUBIC)
@@ -37,7 +37,8 @@ def main():
     try:
         image.save(output_image_path, **kwargs)
     except IOError:
-        print(f"Cannot save file {output_image_path}")
+        print(f"Error: Cannot save file {output_image_path}")
+        image.close()
         exit(1)