diff --git a/src/README.md b/src/README.md
index 8c503a7cb..6106cdc2b 100644
--- a/src/README.md
+++ b/src/README.md
@@ -29,13 +29,12 @@ because they don't depend on any other component.
   * [gen](gen/) (base): Helper utility to generate C++ files from different XMLs.
   * [gfx](gfx/) (fixmath): Abstract graphics structures like point, size, rectangle, region, color, etc.
   * [net](net/) (base): Networking library to send HTTP requests.
-  * [pen](pen/) (base, wacom): Library to handle graphics tablet input.
   * [webserver](webserver/) (base): HTTP web server
 
 ## Level 2
 
   * [doc](doc/) (base, fixmath, gfx): Document model library.
-  * [she](she/) (allegro, base, gfx): A wrapper for the Allegro library.
+  * [she](she/) (allegro, base, gfx, wacom): A wrapper for the Allegro library.
 
 ## Level 3
 
diff --git a/src/pen/CMakeLists.txt b/src/pen/CMakeLists.txt
deleted file mode 100644
index 52e21c94e..000000000
--- a/src/pen/CMakeLists.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-# Aseprite Pen Library
-# Copyright (C) 2016 David Capello
-
-add_library(pen-lib
-  pen.cpp)
-
-target_link_libraries(pen-lib
-  base-lib)
diff --git a/src/pen/pen.cpp b/src/pen/pen.cpp
deleted file mode 100644
index 21148a01c..000000000
--- a/src/pen/pen.cpp
+++ /dev/null
@@ -1,31 +0,0 @@
-// Aseprite Pen Library
-// Copyright (c) 2016 David Capello
-//
-// This file is released under the terms of the MIT license.
-// Read LICENSE.txt for more information.
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "pen/pen.h"
-
-#ifdef _WIN32
-  #include "pen/pen_win.h"
-#else
-  #include "pen/pen_none.h"
-#endif
-
-namespace pen {
-
-PenAPI::PenAPI(void* nativeDisplayHandle)
-  : m_impl(new Impl(nativeDisplayHandle))
-{
-}
-
-PenAPI::~PenAPI()
-{
-  delete m_impl;
-}
-
-} // namespace pen
diff --git a/src/pen/pen.h b/src/pen/pen.h
deleted file mode 100644
index 1308de541..000000000
--- a/src/pen/pen.h
+++ /dev/null
@@ -1,25 +0,0 @@
-// Aseprite Pen Library
-// Copyright (c) 2016 David Capello
-//
-// This file is released under the terms of the MIT license.
-// Read LICENSE.txt for more information.
-
-#ifndef PEN_PEN_H_INCLUDED
-#define PEN_PEN_H_INCLUDED
-#pragma once
-
-namespace pen {
-
-class PenAPI {
-public:
-  PenAPI(void* nativeDisplayHandle);
-  ~PenAPI();
-
-private:
-  class Impl;
-  Impl* m_impl;
-};
-
-} // namespace pen
-
-#endif
diff --git a/src/pen/pen_none.h b/src/pen/pen_none.h
deleted file mode 100644
index 5d23c667a..000000000
--- a/src/pen/pen_none.h
+++ /dev/null
@@ -1,15 +0,0 @@
-// Aseprite Pen Library
-// Copyright (c) 2016 David Capello
-//
-// This file is released under the terms of the MIT license.
-// Read LICENSE.txt for more information.
-
-namespace pen {
-
-class PenAPI::Impl {
-public:
-  Impl(void*) { }
-  ~Impl() { }
-};
-
-} // namespace pen
diff --git a/src/pen/pen_win.h b/src/pen/pen_win.h
deleted file mode 100644
index 5314046ed..000000000
--- a/src/pen/pen_win.h
+++ /dev/null
@@ -1,68 +0,0 @@
-// Aseprite Pen Library
-// Copyright (c) 2016 David Capello
-//
-// This file is released under the terms of the MIT license.
-// Read LICENSE.txt for more information.
-
-#include "base/debug.h"
-#include "base/dll.h"
-#include "base/fs.h"
-#include "base/log.h"
-#include "base/path.h"
-#include "base/string.h"
-
-#include <windows.h>
-#include "wacom/wintab.h"
-
-typedef UINT (API* WTInfoW_Func)(UINT, UINT, LPVOID);
-typedef HCTX (API* WTOpenW_Func)(HWND, LPLOGCONTEXTW, BOOL);
-typedef BOOL (API* WTClose_Func)(HCTX);
-
-class pen::PenAPI::Impl {
-public:
-  Impl(void* nativeDisplayHandle) : m_ctx(nullptr) {
-    m_wintabLib = base::load_dll("wintab32.dll");
-    if (!m_wintabLib)
-      return;
-
-    auto WTInfoW = base::get_dll_proc<WTInfoW_Func>(m_wintabLib, "WTInfoW");
-    auto WTOpenW = base::get_dll_proc<WTOpenW_Func>(m_wintabLib, "WTOpenW");
-    if (!WTInfoW || !WTOpenW)
-      return;
-
-    LOGCONTEXTW logctx;
-    memset(&logctx, 0, sizeof(LOGCONTEXTW));
-    logctx.lcOptions |= CXO_SYSTEM;
-    UINT infoRes = WTInfoW(WTI_DEFSYSCTX, 0, &logctx);
-    ASSERT(infoRes == sizeof(LOGCONTEXTW));
-    ASSERT(logctx.lcOptions & CXO_SYSTEM);
-
-    logctx.lcOptions |= CXO_SYSTEM;
-    m_ctx = WTOpenW((HWND)nativeDisplayHandle, &logctx, TRUE);
-    if (!m_ctx) {
-      LOG("Pen library is not initialized...\n");
-      return;
-    }
-
-    LOG("Pen initialized...\n");
-  }
-
-  ~Impl() {
-    if (!m_wintabLib)
-      return;
-
-    if (m_ctx) {
-      auto WTClose = base::get_dll_proc<WTClose_Func>(m_wintabLib, "WTClose");
-      if (WTClose) {
-        LOG("Pen shutdown...\n");
-        WTClose(m_ctx);
-      }
-    }
-
-    base::unload_dll(m_wintabLib);
-  }
-
-private:
-  base::dll m_wintabLib;
-  HCTX m_ctx;
-};