diff --git a/Makefile b/Makefile
index 3b988ed..408d01d 100644
--- a/Makefile
+++ b/Makefile
@@ -4,9 +4,9 @@
 include config.mk
 
 PROJECT  = zathura
-SOURCE   = callbacks.c commands.c config.c shortcuts.c utils.c zathura.c
-OBJECTS  = ${SOURCE:.c=.o}
-DOBJECTS = ${SOURCE:.c=.do}
+SOURCE   = $(shell find . -iname "*.c" -a ! -iwholename "*./doc*")
+OBJECTS  = $(patsubst %.c, %.o,  $(SOURCE))
+DOBJECTS = $(patsubst %.c, %.do, $(SOURCE))
 
 all: options ${PROJECT}
 
diff --git a/ft/document.c b/ft/document.c
new file mode 100644
index 0000000..41522bb
--- /dev/null
+++ b/ft/document.c
@@ -0,0 +1,77 @@
+/* See LICENSE file for license and copyright information */
+
+#include <stdlib.h>
+
+#include "document.h"
+
+zathura_page_t*
+zathura_page_get(zathura_document_t* document, unsigned int page)
+{
+  return NULL;
+}
+
+zathura_list_t*
+zathura_page_search_text(zathura_page_t* page, const char* text)
+{
+  return NULL;
+}
+
+zathura_list_t*
+zathura_page_links_get(zathura_page_t* page)
+{
+  return NULL;
+}
+
+bool
+zathura_page_links_free(zathura_list_t* list)
+{
+  return false;
+}
+
+zathura_list_t*
+zathura_page_form_fields_get(zathura_page_t* page)
+{
+  return NULL;
+}
+
+bool
+zathura_page_form_fields_free(zathura_list_t* list)
+{
+  return false;
+}
+
+cairo_surface_t*
+zathura_page_render(zathura_page_t* page)
+{
+  return NULL;
+}
+
+zathura_list_t*
+zathura_document_index_generate(zathura_document_t* document)
+{
+  return NULL;
+}
+
+bool
+zathura_document_index_free(zathura_list_t* list)
+{
+  return false;
+}
+
+bool
+zathura_document_save_as(zathura_document_t* document, const char* path)
+{
+  return false;
+}
+
+zathura_list_t*
+zathura_document_attachments_get(zathura_document_t* document)
+{
+  return NULL;
+}
+
+bool
+zathura_document_attachments_free(zathura_list_t* list)
+{
+  return false;
+}
diff --git a/ft/document.h b/ft/document.h
index e69de29..3acdff9 100644
--- a/ft/document.h
+++ b/ft/document.h
@@ -0,0 +1,100 @@
+/* See LICENSE file for license and copyright information */
+
+#ifndef DOCUMENT_H
+#define DOCUMENT_H
+
+#include <cairo.h>
+#include <stdbool.h>
+
+typedef struct zathura_list_s zathura_list_t;
+typedef struct zathura_document_s zathura_document_t;
+
+struct zathura_list_s
+{
+  void* data;
+  struct zathura_list_s* next;
+};
+
+typedef struct zathura_rectangle_s
+{
+  double x1;
+  double y1;
+  double x2;
+  double y2;
+} zathura_rectangle_t;
+
+typedef enum zathura_link_type_e
+{
+  ZATHURA_LINK_TO_PAGE,
+  ZATHURA_LINK_EXTERNAL,
+} zathura_link_type_t;
+
+typedef struct zathura_link_s
+{
+  zathura_rectangle_t position;
+  zathura_link_type_t type;
+  union
+  {
+    unsigned int page_number;
+    char* value;
+  } target;
+} zathura_link_t;
+
+typedef enum zathura_form_type_e
+{
+  ZATHURA_FORM_CHECKBOX,
+  ZATHURA_FORM_TEXTFIELD
+} zathura_form_type_t;
+
+typedef struct zathura_form_s
+{
+  zathura_rectangle_t position;
+  zathura_form_type_t type;
+} zathura_form_t;
+
+typedef struct zathura_page_s
+{
+  unsigned int height;
+  unsigned int width;
+  zathura_document_t* document;
+  void* data;
+} zathura_page_t;
+
+struct zathura_document_s
+{
+  char* file_path;
+  char* password;
+  unsigned int current_page_number;
+  unsigned int number_of_pages;
+  int scale;
+  int rotate;
+
+  struct
+  {
+    zathura_page_t* (*page_get)(zathura_document_t* document, unsigned int page);
+    zathura_list_t* (*page_search_text)(zathura_page_t* page, const char* text);
+    zathura_list_t* (*page_links_get)(zathura_page_t* page);
+    zathura_list_t* (*page_form_fields_get)(zathura_page_t* page);
+    cairo_surface_t* (*page_render)(zathura_page_t* page);
+
+    zathura_list_t* (*document_index_generate)(zathura_document_t* document);
+    bool (*document_save_as)(zathura_document_t* document, const char* path);
+    zathura_list_t* (*document_attachments_get)(zathura_document_t* document);
+  } functions;
+};
+
+zathura_page_t* zathura_page_get(zathura_document_t* document, unsigned int page);
+zathura_list_t* zathura_page_search_text(zathura_page_t* page, const char* text);
+zathura_list_t* zathura_page_links_get(zathura_page_t* page);
+bool zathura_page_links_free(zathura_list_t* list);
+zathura_list_t* zathura_page_form_fields_get(zathura_page_t* page);
+bool zathura_page_form_fields_free(zathura_list_t* list);
+cairo_surface_t* zathura_page_render(zathura_page_t* page);
+
+zathura_list_t* zathura_document_index_generate(zathura_document_t* document);
+bool zathura_document_index_free(zathura_list_t* list);
+bool zathura_document_save_as(zathura_document_t* document, const char* path);
+zathura_list_t* zathura_document_attachments_get(zathura_document_t* document);
+bool zathura_document_attachments_free(zathura_list_t* list);
+
+#endif // DOCUMENT_H
diff --git a/shortcuts.c b/shortcuts.c
index 658595c..28cf0bf 100644
--- a/shortcuts.c
+++ b/shortcuts.c
@@ -44,11 +44,11 @@ sc_focus_inputbar(girara_session_t* session, girara_argument_t* argument)
 {
   g_return_val_if_fail(session != NULL, false);
 
-  if(!(GTK_WIDGET_VISIBLE(GTK_WIDGET(session->gtk.inputbar))))
+  if(!(GTK_WIDGET_VISIBLE(GTK_WIDGET(session->gtk.inputbar)))) {
     gtk_widget_show(GTK_WIDGET(session->gtk.inputbar));
+  }
 
-  if(argument->data)
-  {
+  if(argument->data) {
     gtk_entry_set_text(session->gtk.inputbar, (char*) argument->data);
     gtk_widget_grab_focus(GTK_WIDGET(session->gtk.inputbar));
     gtk_editable_set_position(GTK_EDITABLE(session->gtk.inputbar), -1);
diff --git a/zathura.c b/zathura.c
index 25dbeb7..586edb6 100644
--- a/zathura.c
+++ b/zathura.c
@@ -9,11 +9,13 @@
 bool
 init_zathura()
 {
-  if(!(Zathura.UI.session = girara_session_create()))
+  if(!(Zathura.UI.session = girara_session_create())) {
     return false;
+  }
 
-  if(!girara_session_init(Zathura.UI.session))
+  if(!girara_session_init(Zathura.UI.session)) {
     return false;
+  }
 
   /* UI */
   Zathura.UI.buffer = girara_statusbar_item_add(Zathura.UI.session, FALSE, FALSE, FALSE, NULL);