3 files changed, 12 insertions, 0 deletions
diff --git a/docs/source/apps/cct.rst b/docs/source/apps/cct.rst
index b8f63cbb..f3130c78 100644
--- a/docs/source/apps/cct.rst
+++ b/docs/source/apps/cct.rst
@@ -32,6 +32,10 @@ The following control parameters can appear in any order:
 
     Specify input columns for (up to) 4 input parameters. Defaults to 1,2,3,4.
 
+.. option:: -d<n>
+
+    Specify the number of decimals in the output. Applies to both angles and distances.
+
 .. option:: -I
 
     Do the inverse transformation.
diff --git a/docs/source/apps/cs2cs.rst b/docs/source/apps/cs2cs.rst
index 83b924a8..7871b281 100644
--- a/docs/source/apps/cs2cs.rst
+++ b/docs/source/apps/cs2cs.rst
@@ -36,6 +36,10 @@ The following control parameters can appear in any order:
     line to be passed through without processing. This option applicable to
     ASCII input only. (# is the default value).
 
+.. option:: -d<n>
+
+    Specify the number of decimals in the output. Applies to both angles and distances.
+
 .. option:: -e <string>
 
     Where *string* is an arbitrary string to be output if an error is detected during
diff --git a/docs/source/apps/proj.rst b/docs/source/apps/proj.rst
index 1eb11d3b..c81a230b 100644
--- a/docs/source/apps/proj.rst
+++ b/docs/source/apps/proj.rst
@@ -37,6 +37,10 @@ The following control parameters can appear in any order
     floating point words. This option is to be used when :program:`proj` is a child process
     and allows bypassing formatting operations.
 
+.. option:: -d<n>
+
+    Specify the number of decimals in the output. Applies to both angles and distances.
+
 .. option:: -i
 
     Selects binary input only (see :option:`-b`).