diff --git a/glabels-batch/main.cpp b/glabels-batch/main.cpp
index ef1cb30..2bfa564 100644
--- a/glabels-batch/main.cpp
+++ b/glabels-batch/main.cpp
@@ -100,6 +100,11 @@ int main( int argc, char **argv )
 		 QCoreApplication::translate( "main", "printer" ),
 		 QPrinterInfo::defaultPrinterName() },
 		
+		{{"i","input"},
+		 QCoreApplication::translate( "main", "Set merge input to <source> (typically a filename). Set to \"-\" for stdin." ),
+		 QCoreApplication::translate( "main", "source" ),
+		 "" },
+		
 		{{"o","output"},
 		 QCoreApplication::translate( "main", "Set output filename to <filename>. Set to \"-\" for stdout. (Default=\"output.pdf\")" ),
 		 QCoreApplication::translate( "main", "filename" ),
@@ -221,6 +226,17 @@ int main( int argc, char **argv )
 				qDebug() << "Batch mode.  printer =" << QPrinterInfo::defaultPrinterName();
 			}
 
+			if ( parser.isSet( "input" ) )
+			{
+				QString inputSource = parser.value( "input" );
+				if ( inputSource == "-" )
+				{
+					inputSource = STDIN_FILENAME;
+				}
+				qDebug() << "Merge source =" << inputSource;
+				model->merge()->setSource( inputSource );
+			}
+			
 			glabels::model::PageRenderer renderer( model );
 			if ( model->merge()->keys().empty() )
 			{
diff --git a/user-docs/README.md b/user-docs/README.md
new file mode 100644
index 0000000..3e8df1e
--- /dev/null
+++ b/user-docs/README.md
@@ -0,0 +1,6 @@
+Man pages must be rebuilt manually after modifying rst files.  Requires sphinx-build installed on system.
+
+To rebuild from project binary directory:
+```
+$ make manpages
+```
diff --git a/user-docs/_build/man/glabels-batch-qt.1 b/user-docs/_build/man/glabels-batch-qt.1
index 8eca1e4..177aad6 100644
--- a/user-docs/_build/man/glabels-batch-qt.1
+++ b/user-docs/_build/man/glabels-batch-qt.1
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "GLABELS-BATCH-QT" "1" "Dec 17, 2025" "" "gLabels"
+.TH "GLABELS-BATCH-QT" "1" "Jan 01, 2026" "" "gLabels"
 .SH NAME
 glabels-batch-qt \- print glabels project from command line
 .SH SYNOPSIS
@@ -37,7 +37,7 @@ glabels-batch-qt \- print glabels project from command line
 .sp
 \fBglabels\-batch\-qt\fP is a utility for printing a glabels project file
 from the command line.  This command takes exactly one project file, FILE.  If FILE
-is \(dq\-\(dq, it expects an XML glabels project to be provided on standard input.
+is "\-", it expects an XML glabels project to be provided on standard input.
 .SH OPTIONS
 .INDENT 0.0
 .TP
@@ -61,11 +61,15 @@ Send output to <printer>.
 .UNINDENT
 .INDENT 0.0
 .TP
+.B \-i <source>, \-\-input <source>
+Set merge input to <source> (typically a filename). If source is "\-", read from standard input.
+This option overrides the merge source specified in the original glabels project file.
+.UNINDENT
+.INDENT 0.0
+.TP
 .B \-o [<filename>], \-\-output [<filename>]
-.TP
-.B Set output filename to <filename>. If filename is \(dq\-\(dq, write to standard output.
-.TP
-.B (Default=\(dqoutput.pdf\(dq)
+Set output filename to <filename>. If filename is "\-", write to standard output.
+(Default="output.pdf")
 .UNINDENT
 .INDENT 0.0
 .TP
@@ -136,9 +140,11 @@ On GNU/Linux platforms, \fBglabels\-batch\-qt\fP must be run from within a windo
 .INDENT 0.0
 .INDENT 3.5
 .sp
-.EX
+.nf
+.ft C
 xvfb\-run glabels\-batch\-qt \-o output.pdf myProject.glabels
-.EE
+.ft P
+.fi
 .UNINDENT
 .UNINDENT
 .SH REPORTING BUGS
diff --git a/user-docs/_build/man/glabels-qt.1 b/user-docs/_build/man/glabels-qt.1
index 4a57098..b2885e8 100644
--- a/user-docs/_build/man/glabels-qt.1
+++ b/user-docs/_build/man/glabels-qt.1
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "GLABELS-QT" "1" "Dec 17, 2025" "" "gLabels"
+.TH "GLABELS-QT" "1" "Jan 01, 2026" "" "gLabels"
 .SH NAME
 glabels-qt \- create labels and business cards
 .SH SYNOPSIS
diff --git a/user-docs/man/glabels-batch-qt.rst b/user-docs/man/glabels-batch-qt.rst
index db0cc52..2b2ac97 100644
--- a/user-docs/man/glabels-batch-qt.rst
+++ b/user-docs/man/glabels-batch-qt.rst
@@ -35,7 +35,13 @@ OPTIONS
 
 	    Send output to <printer>.
 
+.. option::  -i <source>, --input <source>
+
+	     Set merge input to <source> (typically a filename). If source is "-", read from standard input.
+	     This option overrides the merge source specified in the original glabels project file.
+
 .. option::  -o [<filename>], --output [<filename>]
+
 	     Set output filename to <filename>. If filename is "-", write to standard output.
 	     (Default="output.pdf")