Add man page

Copy from 'pdf-form-replace-font' with small modifications to align with
the present project.

3 files changed, 139 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index 85923cf..b6a1bb5 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,18 @@
 CLASSPATH := -classpath '.:./lib/*'
 
+MAN_PAGE := doc/pdf-form-replace-font2.1
+
 all:
 	javac $(CLASSPATH) Main.java
 
+
+.PHONY: doc
+doc: $(MAN_PAGE)
+
+$(MAN_PAGE): $(MAN_PAGE).txt
+	a2x --no-xmllint --format manpage $<
+
+
 .PHONY: compile
 compile:
 	mvn compile
diff --git a/doc/pdf-form-replace-font2.1 b/doc/pdf-form-replace-font2.1
new file mode 100644
index 0000000..c474599
--- /dev/null
+++ b/doc/pdf-form-replace-font2.1
@@ -0,0 +1,88 @@
+'\" t
+.\"     Title: pdf-form-replace-font2
+.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
+.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
+.\"      Date: 04/26/2023
+.\"    Manual: \ \&
+.\"    Source: \ \&
+.\"  Language: English
+.\"
+.TH "PDF\-FORM\-REPLACE\-" "1" "04/26/2023" "\ \&" "\ \&"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+pdf-form-replace-font2 \- Replace a font in a PDF form
+.SH "SYNOPSIS"
+.sp
+\fBpdf\-form\-replace\-font2\fR \-\-fill \fIoriginal_font\fR \-\-replace \fIreplacement_font\fR [options] [\fIpdf_file\fR]
+.SH "DESCRIPTION"
+.sp
+Replace a font used in the input PDF\(cqs form fields\&. If no input path is given, the PDF will be read from standard input\&.
+.sp
+Given a PostScript font name used in form fields in the input PDF, those fields will be changed to use the replacement typeface\&.
+.SH "OPTIONS"
+.PP
+\-f, \-\-find
+.RS 4
+PostScript name of the font that will be replaced\&.
+.RE
+.PP
+\-r, \-\-replace
+.RS 4
+PostScript name of the replacement font\&.
+.RE
+.PP
+\-o, \-\-output
+.RS 4
+The output PDF path\&. If this option is not given, or if the value is given as "\-", the PDF will output to standard output\&.
+.RE
+.PP
+\-h, \-\-help
+.RS 4
+Print usage help\&.
+.RE
+.PP
+\-V, \-\-version
+.RS 4
+Print the program version\&.
+.RE
+.SH "LIMITATIONS"
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+The replacement font is not embedded in the output PDF\&.
+.RE
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+Font size cannot be changed\&.
+.RE
diff --git a/doc/pdf-form-replace-font2.1.txt b/doc/pdf-form-replace-font2.1.txt
new file mode 100644
index 0000000..7a114d0
--- /dev/null
+++ b/doc/pdf-form-replace-font2.1.txt
@@ -0,0 +1,41 @@
+pdf-form-replace-font2(1)
+=========================
+
+NAME
+----
+pdf-form-replace-font2 - Replace a font in a PDF form
+
+SYNOPSIS
+--------
+*pdf-form-replace-font2* --fill 'original_font' --replace 'replacement_font' [options] ['pdf_file']
+
+DESCRIPTION
+-----------
+Replace a font used in the input PDF's form fields. If no input path is
+given, the PDF will be read from standard input.
+
+Given a PostScript font name used in form fields in the input PDF, those
+fields will be changed to use the replacement typeface.
+
+OPTIONS
+-------
+-f, --find::
+	PostScript name of the font that will be replaced.
+
+-r, --replace::
+	PostScript name of the replacement font.
+
+-o, --output::
+	The output PDF path. If this option is not given, or if the value is given
+	as "-", the PDF will output to standard output.
+
+-h, --help::
+	Print usage help.
+
+-V, --version::
+	Print the program version.
+
+LIMITATIONS
+-----------
+* The replacement font is not embedded in the output PDF.
+* Font size cannot be changed.