diff --git a/cmd/tablizer.go b/cmd/tablizer.go
index 9385733..6454c42 100644
--- a/cmd/tablizer.go
+++ b/cmd/tablizer.go
@@ -6,7 +6,7 @@ NAME
 
 SYNOPSIS
         Usage:
-          tablizer [regex,...] [file, ...] [flags]
+          tablizer [regex,...] [-r file] [flags]
     
         Operational Flags:
           -c, --columns string              Only show the speficied columns (separated by ,)
@@ -41,12 +41,13 @@ SYNOPSIS
           -t, --sort-time                   sort according to time string
 
         Other Flags:
-              --completion <shell>         Generate the autocompletion script for <shell>
-          -f, --config <file>              Configuration file (default: ~/.config/tablizer/config)
-          -d, --debug                      Enable debugging
-          -h, --help                       help for tablizer
-          -m, --man                        Display manual page
-          -V, --version                    Print program version
+          -r  --read-file <file>            Use <file> as input instead of STDIN
+              --completion <shell>          Generate the autocompletion script for <shell>
+          -f, --config <file>               Configuration file (default: ~/.config/tablizer/config)
+          -d, --debug                       Enable debugging
+          -h, --help                        help for tablizer
+          -m, --man                         Display manual page
+          -V, --version                     Print program version
 
 DESCRIPTION
     Many programs generate tabular output. But sometimes you need to
@@ -441,7 +442,7 @@ AUTHORS
 var usage = `
 
 Usage:
-  tablizer [regex,...] [file, ...] [flags]
+  tablizer [regex,...] [-r file] [flags]
 
 Operational Flags:
   -c, --columns string              Only show the speficied columns (separated by ,)
@@ -476,12 +477,13 @@ Sort Mode Flags (mutually exclusive):
   -t, --sort-time                   sort according to time string
 
 Other Flags:
-      --completion <shell>         Generate the autocompletion script for <shell>
-  -f, --config <file>              Configuration file (default: ~/.config/tablizer/config)
-  -d, --debug                      Enable debugging
-  -h, --help                       help for tablizer
-  -m, --man                        Display manual page
-  -V, --version                    Print program version
+  -r  --read-file <file>            Use <file> as input instead of STDIN
+      --completion <shell>          Generate the autocompletion script for <shell>
+  -f, --config <file>               Configuration file (default: ~/.config/tablizer/config)
+  -d, --debug                       Enable debugging
+  -h, --help                        help for tablizer
+  -m, --man                         Display manual page
+  -V, --version                     Print program version
 
 
 `
diff --git a/tablizer.1 b/tablizer.1
index 415e68e..7c24798 100644
--- a/tablizer.1
+++ b/tablizer.1
@@ -133,7 +133,7 @@
 .\" ========================================================================
 .\"
 .IX Title "TABLIZER 1"
-.TH TABLIZER 1 "2025-08-28" "1" "User Commands"
+.TH TABLIZER 1 "2025-09-11" "1" "User Commands"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l
@@ -144,7 +144,7 @@ tablizer \- Manipulate tabular output of other programs
 .IX Header "SYNOPSIS"
 .Vb 2
 \&    Usage:
-\&      tablizer [regex,...] [file, ...] [flags]
+\&      tablizer [regex,...] [\-r file] [flags]
 \&    
 \&    Operational Flags:
 \&      \-c, \-\-columns string              Only show the speficied columns (separated by ,)
@@ -179,12 +179,13 @@ tablizer \- Manipulate tabular output of other programs
 \&      \-t, \-\-sort\-time                   sort according to time string
 \&
 \&    Other Flags:
-\&          \-\-completion <shell>         Generate the autocompletion script for <shell>
-\&      \-f, \-\-config <file>              Configuration file (default: ~/.config/tablizer/config)
-\&      \-d, \-\-debug                      Enable debugging
-\&      \-h, \-\-help                       help for tablizer
-\&      \-m, \-\-man                        Display manual page
-\&      \-V, \-\-version                    Print program version
+\&      \-r  \-\-read\-file <file>            Use <file> as input instead of STDIN
+\&          \-\-completion <shell>          Generate the autocompletion script for <shell>
+\&      \-f, \-\-config <file>               Configuration file (default: ~/.config/tablizer/config)
+\&      \-d, \-\-debug                       Enable debugging
+\&      \-h, \-\-help                        help for tablizer
+\&      \-m, \-\-man                         Display manual page
+\&      \-V, \-\-version                     Print program version
 .Ve
 .SH "DESCRIPTION"
 .IX Header "DESCRIPTION"
diff --git a/tablizer.pod b/tablizer.pod
index 5dbd166..5250703 100644
--- a/tablizer.pod
+++ b/tablizer.pod
@@ -5,7 +5,7 @@ tablizer - Manipulate tabular output of other programs
 =head1 SYNOPSIS
 
     Usage:
-      tablizer [regex,...] [file, ...] [flags]
+      tablizer [regex,...] [-r file] [flags]
     
     Operational Flags:
       -c, --columns string              Only show the speficied columns (separated by ,)
@@ -40,12 +40,13 @@ tablizer - Manipulate tabular output of other programs
       -t, --sort-time                   sort according to time string
 
     Other Flags:
-          --completion <shell>         Generate the autocompletion script for <shell>
-      -f, --config <file>              Configuration file (default: ~/.config/tablizer/config)
-      -d, --debug                      Enable debugging
-      -h, --help                       help for tablizer
-      -m, --man                        Display manual page
-      -V, --version                    Print program version
+      -r  --read-file <file>            Use <file> as input instead of STDIN
+          --completion <shell>          Generate the autocompletion script for <shell>
+      -f, --config <file>               Configuration file (default: ~/.config/tablizer/config)
+      -d, --debug                       Enable debugging
+      -h, --help                        help for tablizer
+      -m, --man                         Display manual page
+      -V, --version                     Print program version
 
 
 =head1 DESCRIPTION