From 4ba4b143e6bdbb9a73e279368a8b66931a1090b1 Mon Sep 17 00:00:00 2001
From: jvoisin <julien.voisin@dustri.org>
Date: Mon, 2 Dec 2019 17:10:34 +0100
Subject: [PATCH] Add a note about metadata

---
 doc/mat2.1 | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/doc/mat2.1 b/doc/mat2.1
index 1458acf..33ae500 100644
--- a/doc/mat2.1
+++ b/doc/mat2.1
@@ -62,6 +62,16 @@ mat2 ./myfile.pdf
 .fi
 .PP
 
+.SH NOTES ABOUT METADATA
+
+While mat2 is doing its very best to display metadata when the --show flag is
+passed, it doesn't mean that a file is clean from any metadata if mat2 doesn't
+show any. There is no reliable way to detect every single possible metadata for
+complex file formats.
+.PP
+This is why you shouldn't rely on metadata's presence to decide if your file must
+be cleaned or not.
+
 .SH BUGS
 
 While mat2 does its very best to remove every single metadata,
-- 
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