Description: Add POD to scripts

--- a/scripts/pdfbklt
+++ b/scripts/pdfbklt
@@ -1,5 +1,36 @@
 #!/usr/bin/perl
 
+=head1 NAME
+
+pdfbklt.plx - Turns documents into booklets
+
+=head1 DESCRIPTION
+
+Converts a PDF file into a booklet. It edits the pdffile to add the
+    modifications at the end.
+
+=head1 SYNOPSIS
+
+    PDFBKLT [-b num/size] [-p num] [-q] [-r] [-s size] pdffile
+
+  -b num/size    Specifies which page contains the output page size details [1]
+            or gives the dimensions of the page in pts (x;y) or A4,ltr,lgl,A5
+  -l        Flag to indicate linear scaling
+  -p num    Specifies the number of pages on the output page (1, 2, 4) [2]
+            If 4, can be 4s to flip on short edge
+  -q        Quiet (no on screen messages)
+  -r        Rotates the output (-p 2 rotates automatically, -r rotates back)
+  -s size   Specifies the the location of the actual text on a page:
+                2   half page right and left (big gutter)
+                2r  half page always on right
+                2l  half page always on left
+                4   1/4 page right and left bottom (very big gutter)
+                4t  1/4 page right and left top (very big gutter)
+                4r/4l/4rt/4lt   1/4 page always on right or left bottom or top
+                location as a single string: minx,miny,maxx,maxy in pts
+
+=cut
+
 use Text::PDF::File;
 use Text::PDF::Utils;
 use Getopt::Std;
--- a/scripts/pdfrevert
+++ b/scripts/pdfrevert
@@ -1,5 +1,20 @@
 #!/usr/bin/perl
 
+=head1 NAME
+
+pdfrevert.plx - Removes one layer of edits from a PDF file
+
+=head1 DESCRIPTION
+
+Removes one layer of changes to a PDF file, trying to maximise the
+    size of the output file (to account for linearised PDF).
+
+=head1 SYNOPSIS
+
+    PDFREVERT infile
+
+=cut
+
 use Text::PDF::File;
 
 unless (defined $ARGV[0])
--- a/scripts/pdfstamp
+++ b/scripts/pdfstamp
@@ -1,5 +1,26 @@
 #!/usr/bin/perl
 
+=head1 NAME
+
+pdfstamp.plx - Adds the given text in a given fonts, size to all pages
+    at given location
+
+=head1 DESCRIPTION
+
+Adds the given string to the infile .pdf file at the given location,
+    font and size.
+
+=head1 SYNOPSIS
+
+    pdfstamp [-f font] [-l locx,locy] [-s size] infile string
+
+    -f font     Font name from the standard fonts [Helvetica]
+    -l locx,locy    Location in points from bottom left of page [0,0]
+    -s size     Font size to print at             [11]
+    -t ttfile   TrueType font file to use (instead of -f)
+
+=cut
+
 use Text::PDF::File;
 use Text::PDF::SFont;
 use Text::PDF::Utils;
