Simplify paginationStartPage and rename to paginationOffset

Author: marcbachmann

README.md

@@ -102,6 +102,7 @@ config = {
     "left": "1.5in"
   },
 
+  paginationOffset: 1,       // Override the initial pagination number
   "header": {
     "height": "45mm",
     "contents": '<div style="text-align: center;">Author: Marc Bachmann</div>'
@@ -138,7 +139,7 @@ config = {
     // e.g.
     "Authorization": "Bearer ACEFAD8C-4B4D-4042-AB30-6C735F5BAC8B"
   },
-  
+
   // To run Node application as Windows service
   "cliOptions": {
     "detached": true

lib/scripts/pdf_a4_portrait.js

@@ -144,26 +144,24 @@ function getContent (page) {
 // Creates page section
 // --------------------
 function createSection (section, content, options) {
-  var opts = options
   options = options[section] || {}
   var c = content[section] || {}
   var o = options.contents
+  var _paginationOffset = Math.floor(options.paginationOffset)
+  var paginationOffset = isNaN(options.paginationOffset) ? 0 : _paginationOffset
+
   if (typeof o !== 'object') o = {default: o}
 
   return {
     height: options.height,
     contents: phantom.callback(function (pageNum, numPages) {
       var html = o[pageNum] || c[pageNum]
 
-      var pageNumFinal = pageNum, numPagesFinal = numPages;
-      if(opts.paginationStartPage && opts.paginationStartPage > 1) {
-        var pageOffset = opts.paginationStartPage - 1;
-        pageNumFinal = (pageNumFinal - pageOffset > 0 ? pageNumFinal - pageOffset : '');
-        numPagesFinal -= pageOffset;
-      }
+      var pageNumFinal = pageNum + paginationOffset
+      var numPagesFinal = numPages + paginationOffset
 
-      if (pageNum === 1 && !html) html = o.first || c.first
-      if (pageNum === numPages && !html) html = o.last || c.last
+      if (pageNumFinal === 1 && !html) html = o.first || c.first
+      if (numPagesFinal === numPages && !html) html = o.last || c.last
       return (html || o.default || c.default || '')
         .replace(/{{page}}/g, pageNumFinal)
         .replace(/{{pages}}/g, numPagesFinal) + content.styles