diff --git a/src/Grafoscopio/GrafoscopioDocs.class.st b/src/Grafoscopio/GrafoscopioDocs.class.st
index 3d64bcc..c835891 100644
--- a/src/Grafoscopio/GrafoscopioDocs.class.st
+++ b/src/Grafoscopio/GrafoscopioDocs.class.st
@@ -33,10 +33,9 @@ GrafoscopioDocs class >> manual [
 { #category : #operation }
 GrafoscopioDocs class >> openPDFManual [
 	"I open the documentation in PDF format."
-	| pdfManual docs |
-	docs := self newDefault.
-	pdfManual := docs documents at: 4.
-	WebBrowser openOn: (docs localPlace / pdfManual) fullName.
+	| pdfManual |
+	pdfManual := FileLocator imageDirectory asFileReference / 'Grafoscopio/Docs/En/Books/Manual/manual.pdf'. 
+	WebBrowser openOn: pdfManual fullName.
 ]
 
 { #category : #operation }
diff --git a/src/Grafoscopio/GrafoscopioNotebook.class.st b/src/Grafoscopio/GrafoscopioNotebook.class.st
index 1a5aa3b..37dd168 100644
--- a/src/Grafoscopio/GrafoscopioNotebook.class.st
+++ b/src/Grafoscopio/GrafoscopioNotebook.class.st
@@ -223,17 +223,15 @@ GrafoscopioNotebook >> exportAsPDF [
 	"I export the current tree/document to a PDF file, using pandoc and LaTeX external apps.
 	The latex engine used is xelatex, to minimize errors and warnings related with UTF8 support.
 	I suppose all them are already installed and defined in the system."
-	| pandocCommand  |
+	| pandocCommonCommand  |
 	self markdownFile exists ifFalse: [ self exportAsMarkdown ].	
 	self pdfFile ensureDelete.
-	pandocCommand := 'cd ', self markdownFile parent fullName,'; ',
-		'pandoc ', self pandocOptionsComputed, ' ',
-		self markdownFile fullName, ' -o ', self pdfFile fullName.
-	Smalltalk platformName = 'unix' ifTrue: [ ExternalOSProcess command: pandocCommand ].
+	pandocCommonCommand := 'pandoc ', self pandocOptionsComputed, ' ', self markdownFile fullName, 
+		' --output ', self pdfFile fullName.
+	Smalltalk platformName = 'unix' 
+		ifTrue: [ ExternalOSProcess command: 'cd ', self markdownFile parent fullName,'; ', pandocCommonCommand ].
 	Smalltalk platformName = 'Win32' 
-		ifTrue: [ WinProcess 
-						createProcess: 'pandoc ', self pandocOptionsComputed, ' ',
-							self markdownFile fullName, ' -o ', self pdfFile fullName ].
+		ifTrue: [ WinProcess createProcess: pandocCommonCommand ].
 	self inform: ('File exported as: ', String cr, self pdfFile fullName)
 ]
 
@@ -509,60 +507,81 @@ GrafoscopioNotebook >> notebookContent: aTree [
 
 { #category : #initialization }
 GrafoscopioNotebook >> notebookSubMenu [
-	
 	^ MenuModel new
-		addGroup: [ :group |
-			group addItem: [ :item |
-				item 
-					name: 'Save';
-					icon: (Smalltalk ui icons iconNamed: #smallSave);
-					shortcut: $s command;
-					action: [ self saveWorkingNotebook ] ].
-			group addItem: [ :item |
-				item 
-					name: 'Save as...';
-					icon: (Smalltalk ui icons iconNamed: #smallSaveAs);
-					action: [ self saveToFileUI ] ].
-			group addItem: [ :item |
-				item 
-					name: 'Export as markdown';
-					icon: (Smalltalk ui icons iconNamed: #smallSaveAs);
-					action: [ self exportAsMarkdown ] ].	
-			group addItem: [ :item |
-				item 
-					name: 'Export as html';
-					icon: (Smalltalk ui icons iconNamed: #smallWindow);
-					action: [ self exportAsHTML ]].
-			group addItem: [ :item |
-				item 
-					name: 'Export as LaTeX';
-					icon: (Smalltalk ui icons iconNamed: #smallPrint);
-					action: [ self exportAsLaTeX ]].
-			group addItem: [ :item |
-				item 
-					name: 'Export as pdf';
-					icon: (Smalltalk ui icons iconNamed: #smallPrint);
-					action: [ self exportAsPDF ] ].	
-			group addItem: [ :item |
-				item 
-					name: 'See html';
-					icon: (Smalltalk ui icons iconNamed: #smallInspectIt);
-					action: [ self inform: 'To be implemented...']].
-			group addItem: [ :item |
-				item 
-					name: 'See pdf';
-					icon: (Smalltalk ui icons iconNamed: #smallInspectIt);
-					action: [ self inform: 'To be implemented...' ]].
-			group addItem: [ :item |
-				item 
-					name: 'See images list';
-					icon: (Smalltalk ui icons iconNamed: #glamorousTable);
-					action: [ self listImagesUI ]].
-			group addItem: [ :item |
-				item 
-					name: 'Define debug message...';
-					icon: Smalltalk ui icons glamorousBug;
-					action: [ self defineDebugMessageUI ]]]
+		addGroup: [ :group | 
+			group
+				addItem: [ :item | 
+					item
+						name: 'Save';
+						icon: (Smalltalk ui icons iconNamed: #smallSave);
+						shortcut: $s command;
+						action: [ self saveWorkingNotebook ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'Save as...';
+						icon: (Smalltalk ui icons iconNamed: #smallSaveAs);
+						action: [ self saveToFileUI ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'Extract images';
+						icon: (Smalltalk ui icons iconNamed: #processBrowser);
+						action: [ self extractImages ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'Import images';
+						icon: (Smalltalk ui icons iconNamed: #processBrowser);
+						action: [ self importImages ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'Export as markdown';
+						icon: (Smalltalk ui icons iconNamed: #smallSaveAs);
+						action: [ self exportAsMarkdown ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'Export as html';
+						icon: (Smalltalk ui icons iconNamed: #smallWindow);
+						action: [ self exportAsHTML ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'Export as LaTeX';
+						icon: (Smalltalk ui icons iconNamed: #smallPrint);
+						action: [ self exportAsLaTeX ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'Export as pdf';
+						icon: (Smalltalk ui icons iconNamed: #smallPrint);
+						action: [ self exportAsPDF ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'See html';
+						icon: #smallInspectIt asIcon;
+						action: [ self inform: 'To be implemented...' ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'See pdf';
+						icon: (Smalltalk ui icons iconNamed: #smallInspectIt);
+						action: [ self inform: 'To be implemented...' ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'See images list';
+						icon: (Smalltalk ui icons iconNamed: #processBrowser);
+						action: [ self listImagesUI ] ].
+			group
+				addItem: [ :item | 
+					item
+						name: 'Define debug message...';
+						icon: Smalltalk ui icons glamorousBug;
+						action: [ self defineDebugMessageUI ] ] ]
 ]
 
 { #category : #private }
diff --git a/src/Grafoscopio/Pandoc.class.st b/src/Grafoscopio/Pandoc.class.st
new file mode 100644
index 0000000..196e6ce
--- /dev/null
+++ b/src/Grafoscopio/Pandoc.class.st
@@ -0,0 +1,46 @@
+"
+I model the interaction between Pandoc and Grafoscopio.
+"
+Class {
+	#name : #Pandoc,
+	#superclass : #Object,
+	#classInstVars : [
+		'executable'
+	],
+	#category : #'Grafoscopio-Model'
+}
+
+{ #category : #accessing }
+Pandoc class >> executable [
+	^ executable ifNil: [ self executableLocation ]
+]
+
+{ #category : #accessing }
+Pandoc class >> executable: aFileReference [
+	executable := aFileReference 
+]
+
+{ #category : #accessing }
+Pandoc class >> executableLocation [
+	| location |
+	location := '/usr/bin/pandoc'.
+	location asFileReference exists
+		ifTrue: [ ^ location ]
+		ifFalse: [ self definePandocExecutable ]
+]
+
+{ #category : #utility }
+Pandoc class >> luaFilters [
+	"I define the location of set of scripts, that allows to change the default behaviour of Pandoc
+	and/or the processing of supported markup languages. 
+	
+	For more information about Lua filters see:
+	
+	https://pandoc.org/lua-filters.html
+	"
+
+	| filters |
+	filters := OrderedCollection new.
+	filters 
+		add: 'http://mutabit.com/repos.fossil/dataweek/doc/tip/Artefactos/Scripts/links.lua'
+]