diff --git a/apub2gmi.py b/apub2gmi.py
index c3417f2..32d2336 100755
--- a/apub2gmi.py
+++ b/apub2gmi.py
@@ -46,7 +46,7 @@ NAME_RES = [
 
 
 
-class GlossatoryPost():
+class MediaPost():
 	def __init__(self, year, month, day, file, title):
 		self.year = year
 		self.month = month
@@ -87,7 +87,7 @@ def process_post(archive, obj):
 	else:
 		raise ValueError(f"Couldn't match url {url}")
 	alt = attachment["name"]
-	return GlossatoryPost(year, month, day, file, alt)
+	return MediaPost(year, month, day, file, alt)
 
 
 def ensure_dir(gmdir):
@@ -95,17 +95,26 @@ def ensure_dir(gmdir):
 		gmdir.mkdir(parents=True)
 
 
-def write_gemfile(gmdir, title, items):
+def load_colophon(cfile):
+	if cfile:
+		with open(cfile, "r") as cfh:
+			colophon = cfh.readlines()
+			return "".join(colophon)
+	return None
+
+def write_gemfile(gmdir, colophon, title, items):
 	ensure_dir(gmdir)
 	gmi = gmdir / "index.gmi"
 	with open(gmi, "w") as gfh:
-		gfh.write(HEADER)
+		if colophon:
+			gfh.write(colophon)
+			gfh.write("\n\n")
 		gfh.write(f"# {title}\n\n")
 		for link, text in items:
 			gfh.write(f"=> {link} {text}\n")
 
 
-def apub2gmi(archive, output):
+def apub2gmi(archive, output, colophon):
 	with open(f"{archive}/outbox.json", "r") as fh:
 		js = json.load(fh)
 		posts = {}
@@ -127,12 +136,12 @@ def apub2gmi(archive, output):
 					print(f"Processing failed: {i}: {e}")
 
 		years = [ ( f"{year}/", year ) for year in posts ]
-		write_gemfile(Path(output), "Glossatory", years)
+		write_gemfile(Path(output), colophon, "Glossatory", years)
 
 		for year in posts:
 			ydir = Path(output) / year
 			months = [ ( f"{month}/", MNAMES[month] ) for month in posts[year] ]
-			write_gemfile(ydir, year, months)
+			write_gemfile(ydir, colophon, year, months)
 			for month in posts[year]:
 				mname = MNAMES[month]
 				mdir = ydir / month
@@ -148,7 +157,7 @@ def apub2gmi(archive, output):
 				for day in posts[year][month]:
 					for post in posts[year][month][day]:
 						links.append((f"{day}/{post.fname}", post.title))
-				write_gemfile(mdir, f"{mname} {year}", links)
+				write_gemfile(mdir, colophon, f"{mname} {year}", links)
 
 
 if __name__ == "__main__":
@@ -159,5 +168,10 @@ if __name__ == "__main__":
 	ap.add_argument(
 		'-o', '--output', required=True, type=str, help="Output directory"
 		)
+	ap.add_argument(
+		'-c', '--colophon', required=False, type=str,
+		help="File with text to be included at the top of each index page"
+		)
 	args = ap.parse_args()
-	apub2gmi(args.archive, args.output)
+	colophon = load_colophon(args.colophon)
+	apub2gmi(args.archive, args.output, colophon)
diff --git a/colophon.gmi b/colophon.gmi
new file mode 100644
index 0000000..a557a88
--- /dev/null
+++ b/colophon.gmi
@@ -0,0 +1 @@
+This is a sample of some text which can be added at the top of every gemfile in the archive.