diff --git a/l10n/zh-CN/chrome.properties b/l10n/zh-CN/chrome.properties
new file mode 100644
index 000000000..fac9eda7c
--- /dev/null
+++ b/l10n/zh-CN/chrome.properties
@@ -0,0 +1,18 @@
+# Copyright 2012 Mozilla Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# Chrome notification bar messages and buttons
+unsupported_feature=该 PDF 文档可能无法被正确显示
+open_with_different_viewer=使用另一个 PDF 查看器打开
+open_with_different_viewer.accessKey=o
diff --git a/l10n/zh-CN/viewer.properties b/l10n/zh-CN/viewer.properties
index cbbae71da..7ab0cd239 100644
--- a/l10n/zh-CN/viewer.properties
+++ b/l10n/zh-CN/viewer.properties
@@ -12,48 +12,112 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-bookmark.title=当前视图（复制或在新窗口中打开）
+# Main toolbar buttons (tooltips and alt text for images)
 previous.title=上一页
-next.title=下一页
-print.title=打印
-download.title=下载
-zoom_out.title=缩小
-zoom_in.title=放大
-error_more_info=更多信息
-error_less_info=更少信息
-error_close=关闭
-error_build=PDF.JS Build: {{build}}
-error_message=Message: {{message}}
-error_stack=Stack: {{stack}}
-error_file=File: {{file}}
-error_line=Line: {{line}}
-page_scale_width=适合页宽
-page_scale_fit=适合页面
-page_scale_auto=自动缩放
-page_scale_actual=实际大小
-toggle_slider.title=切换侧栏
-thumbs.title=显示缩略图
-outline.title=显示文档大纲
-loading=正在载入... {{percent}}%
-loading_error_indicator=错误
-loading_error=载入PDF时发生错误。
-rendering_error=呈现页面时发生错误。
-page_label=页：
-page_of=/ {{pageCount}}
-no_outline=无可用大纲
-open_file.title=打开文件
-text_annotation_type=[{{type}} 注解]
-toggle_slider_label=切换侧栏
-thumbs_label=缩略图
-outline_label=文档大纲
-bookmark_label=当前视图
 previous_label=向上
+next.title=下一页
 next_label=向下
-print_label=打印
-download_label=下载
+
+# LOCALIZATION NOTE (page_label, page_of):
+# These strings are concatenated to form the "Page: X of Y" string.
+# Do not translate "{{pageCount}}", it will be substituted with a number
+# representing the total number of pages.
+page_label=页码:
+page_of=/ {{pageCount}}
+
+zoom_out.title=缩小
 zoom_out_label=缩小
+zoom_in.title=放大
 zoom_in_label=放大
 zoom.title=缩放
+print.title=打印
+print_label=打印
+presentation_mode.title=切换至幻灯模式
+presentation_mode_label=幻灯模式
+open_file.title=打开文件
+open_file_label=打开
+download.title=下载
+download_label=下载
+bookmark.title=当前视图（复制或在新窗口中打开）
+bookmark_label=当前视图
+
+# Tooltips and alt text for side panel toolbar buttons
+# (the _label strings are alt text for the buttons, the .title strings are
+# tooltips)
+toggle_slider.title=切换侧栏
+toggle_slider_label=切换侧栏
+outline.title=显示文档大纲
+outline_label=文档大纲
+thumbs.title=显示缩略图
+thumbs_label=缩略图
+findbar.title=在该文档内查找
+findbar_label=查找
+
+# Document outline messages
+no_outline=没有可用的大纲
+
+# Thumbnails panel item (tooltip and alt text for images)
+# LOCALIZATION NOTE (thumb_page_title): "{{page}}" will be replaced by the page
+# number.
 thumb_page_title=页码 {{page}}
+# LOCALIZATION NOTE (thumb_page_canvas): "{{page}}" will be replaced by the page
+# number.
 thumb_page_canvas=页面 {{page}} 的缩略图
-request_password=PDF 被密码保护：
+
+# Context menu
+first_page.label=转到第一页
+last_page.label=转到结尾页
+page_rotate_cw.label=顺时针旋转
+page_rotate_ccw.label=逆时针旋转
+
+# Find panel button title and messages
+find_label=查找:
+find_previous.title=查找该短语上一次出现的位置
+find_previous_label=上一个
+find_next.title=查找该短语下一次出现的位置
+find_next_label=下一个
+find_highlight=全部高亮
+find_match_case_label=区分大小写
+find_reached_top=已查找至文档的开始位置，将从文档末尾继续查找
+find_reached_bottom=已查找至文档的末尾位置，将从文档的开始位置继续查找
+find_not_found=找不到
+
+# Error panel labels
+error_more_info=更多信息
+error_less_info=简略信息
+error_close=关闭
+# LOCALIZATION NOTE (error_version_info): "{{version}}" and "{{build}}" will be
+# replaced by the PDF.JS version and build ID.
+error_version_info=PDF.js v{{version}} (构建版本: {{build}})
+# LOCALIZATION NOTE (error_message): "{{message}}" will be replaced by an
+# english string describing the error.
+error_message=错误信息: {{message}}
+# LOCALIZATION NOTE (error_stack): "{{stack}}" will be replaced with a stack
+# trace.
+error_stack=堆栈: {{stack}}
+# LOCALIZATION NOTE (error_file): "{{file}}" will be replaced with a filename
+error_file=文件: {{file}}
+# LOCALIZATION NOTE (error_line): "{{line}}" will be replaced with a line number
+error_line=行数: {{line}}
+rendering_error=渲染页面时出错。
+
+# Predefined zoom values
+page_scale_width=符合页宽
+page_scale_fit=符合页面
+page_scale_auto=自动缩放
+page_scale_actual=实际大小
+
+# Loading indicator messages
+loading_error_indicator=错误
+loading_error=加载 PDF 文件时出错。
+invalid_file_error=PDF 文件无效或已损坏。
+
+# LOCALIZATION NOTE (text_annotation_type): This is used as a tooltip.
+# "{{type}}" will be replaced with an annotation type from a list defined in
+# the PDF spec (32000-1:2008 Table 169 – Annotation types).
+# Some common types are e.g.: "Check", "Text", "Comment", "Note"
+text_annotation_type=[{{type}} 注解]
+request_password=该 PDF 文档受密码保护：
+
+printing_not_supported=警告：该浏览器不能完全支持打印。
+web_fonts_disabled=Web 页面字体已被禁用，无法使用嵌入到 PDF 中的字体。