diff --git a/setup/iso_639/pt.po b/setup/iso_639/pt.po
index bced27cf05..cdb4fc7263 100644
--- a/setup/iso_639/pt.po
+++ b/setup/iso_639/pt.po
@@ -16,7 +16,7 @@ msgstr ""
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Launchpad-Export-Date: 2013-02-18 04:48+0000\n"
+"X-Launchpad-Export-Date: 2013-02-19 04:56+0000\n"
 "X-Generator: Launchpad (build 16491)\n"
 "Language: pt\n"
 
diff --git a/src/calibre/translations/es.po b/src/calibre/translations/es.po
index 5a73ddd60b..ebe130aaf1 100644
--- a/src/calibre/translations/es.po
+++ b/src/calibre/translations/es.po
@@ -11,14 +11,14 @@ msgstr ""
 "Project-Id-Version: es\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: 2013-02-15 07:12+0000\n"
-"PO-Revision-Date: 2013-02-15 13:36+0000\n"
-"Last-Translator: Jellby <Unknown>\n"
+"PO-Revision-Date: 2013-02-18 20:10+0000\n"
+"Last-Translator: dario <Unknown>\n"
 "Language-Team: Español; Castellano <>\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Launchpad-Export-Date: 2013-02-16 04:50+0000\n"
+"X-Launchpad-Export-Date: 2013-02-19 04:55+0000\n"
 "X-Generator: Launchpad (build 16491)\n"
 
 #: /home/kovid/work/calibre/src/calibre/customize/profiles.py:540
@@ -4189,7 +4189,7 @@ msgid ""
 "margins. Sometimes, this can cause the removal of margins that should not "
 "have been removed. In this case you can disable the removal."
 msgstr ""
-"Algunos documentos especificas los márgenes de página añadiendo márgenes a "
+"Algunos documentos especifican los márgenes de página añadiendo márgenes a "
 "la izquierda y derecha de cada párrafo, calibre intentará detectar y "
 "eliminar estos márgenes. A veces esto puede ocasionar que se eliminen "
 "márgenes que deberían mantenerse. En tal caso, puede desactivar la "
@@ -4256,9 +4256,9 @@ msgid ""
 "1.5em. Spacing removal will not work if the source file does not use "
 "paragraphs (<p> or <div> tags)."
 msgstr ""
-"Eliminar el espacio entre párrafos. También establece sangrado en la primera "
-"línea de cada párrafo de 1,5em. La eliminación del espacio no funciona si el "
-"archivo de origen no define párrafos (etiquetas <p> o <div>)."
+"Eliminar el espacio entre párrafos. También establece sangrado en cada "
+"párrafo de 1,5em. La eliminación del espacio no funciona si el archivo de "
+"origen no define párrafos (etiquetas <p> o <div>)."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:417
 msgid ""
@@ -4331,8 +4331,6 @@ msgstr ""
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:471
 msgid "Convert fancy quotes, dashes and ellipsis to their plain equivalents."
 msgstr ""
-"Convertir comillas, rayas y puntos suspensivos tipográficos en sus "
-"equivalentes simples."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:479
 msgid ""
@@ -4379,12 +4377,11 @@ msgstr ""
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:513
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/cli.py:38
 msgid "Set the title."
-msgstr "Establecer el título."
+msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:517
 msgid "Set the authors. Multiple authors should be separated by ampersands."
 msgstr ""
-"Establecer los autores. Si hay varios autores deben separarse por «&»."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:522
 msgid "The version of the title to be used for sorting. "
@@ -4396,7 +4393,7 @@ msgstr "Texto que se usará para ordenar por autor. "
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:530
 msgid "Set the cover to the specified file or URL"
-msgstr "Establecer la portada desde el archivo o el URL especificados"
+msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:534
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/cli.py:54
@@ -4432,7 +4429,7 @@ msgstr "Establecer el ISBN del libro."
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/cli.py:68
 msgid "Set the tags for the book. Should be a comma separated list."
 msgstr ""
-"Establecer etiquetas para el libro. Debe ser una lista separada por comas"
+"Establecer etiquetas para el libro. Debe ser una lista separada por comas."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:562
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/cli.py:70
@@ -4474,8 +4471,7 @@ msgstr ""
 msgid ""
 "Look for common words and patterns that denote italics and italicize them."
 msgstr ""
-"Buscar palabras y patrones que habitualmente estén en cursiva y ponerlos en "
-"cursiva."
+"Buscar palabras y patrones que denotan cursiva y ponerlos en cursiva."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:595
 msgid ""
@@ -4483,7 +4479,7 @@ msgid ""
 "indents."
 msgstr ""
 "Convertir los sangrados creados a partir de varios espacios duros en "
-"sangrados de CSS."
+"sangrados en código CSS."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:600
 msgid ""
@@ -4506,7 +4502,8 @@ msgid ""
 "Remove empty paragraphs from the document when they exist between every "
 "other paragraph"
 msgstr ""
-"Eliminar del documento los párrafos vacíos que hay entre otros párrafos"
+"Eliminar los párrafos vacíos del documento cuando existen entre otros "
+"párrafos."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:617
 msgid ""
@@ -4531,8 +4528,8 @@ msgid ""
 "used as a dictionary to determine whether hyphens should be retained or "
 "removed."
 msgstr ""
-"Analiza las palabras con guion en todo el documento. El propio documento se "
-"usa como un diccionario para determinar si cada guion debe mantenerse o "
+"Analiza las palabras con guión en todo el documento. El propio documento se "
+"utiliza como un diccionario para determinar si cada guión debe mantenerse o "
 "eliminarse."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:634
@@ -4564,7 +4561,7 @@ msgstr "Texto de sustitución para el texto encontrado con sr2-search."
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:658
 msgid "Search pattern (regular expression) to be replaced with sr3-replace."
 msgstr ""
-"Patrón de búsqueda (expresión regular) que se sustituirá por sr3-replace."
+"Patrón de búsqueda (expresión regular) a ser reemplazado con sr3-replace."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plumber.py:663
 msgid "Replacement to replace the text found with sr3-search."
@@ -4623,8 +4620,6 @@ msgid ""
 "Character encoding for the input HTML files. Common choices include: cp1252, "
 "cp1251, latin1 and utf-8."
 msgstr ""
-"Codificación de caracteres para los archivos HTML de entrada. Algunas "
-"posibilidades comunes son: cp1252, cp1251, latin1 y utf-8."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/html/to_zip.py:91
 msgid "Add linked files in breadth first order"
@@ -4637,10 +4632,10 @@ msgid ""
 "the order A, B, D, C.  With this option, they will instead be added as A, B, "
 "C, D"
 msgstr ""
-"Normalmente, al seguir los enlaces en los archivos HTML calibre va siguiendo "
-"primero la máxima profundidad; esto es, si el archivo A enlaza a B y C, pero "
-"B enlaza a D, los archivos se añadirán en el orden A, B, D, C. Con esta "
-"opción se añadirán en el orden A, B, C, D"
+"Normalmente, al seguir los enlaces en los archivos HTML, calibre va "
+"siguiendo primero aquellos de máxima profundidad; esto es, si el archivo A "
+"enlaza a B y C, pero B enlaza a D, los archivos se añadirán en el orden A, "
+"B, D, C. Con esta opción se añadirán en el orden A, B, C, D"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/lit/from_any.py:47
 msgid "Creating LIT file from EPUB..."
@@ -4730,7 +4725,7 @@ msgstr "No se pudo leer la imagen de portada: %s"
 #: /home/kovid/work/calibre/src/calibre/ebooks/lrf/html/convert_from.py:1868
 #, python-format
 msgid "Cannot read from: %s"
-msgstr "No se pudo leer de: %s"
+msgstr "No se pudo leer desde: %s"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/lrf/html/convert_from.py:1997
 msgid "Failed to process opf file"
@@ -5185,7 +5180,7 @@ msgstr ""
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/sources/amazon.py:779
 msgid "Amazon timed out. Try again later."
 msgstr ""
-"El tiempo de espera de Amazon ha expirado. Vuelva a intentarlo más tarde"
+"El tiempo de espera de Amazon ha expirado. Vuelva a intentarlo más tarde."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/sources/base.py:190
 msgid "Metadata source"
@@ -5197,7 +5192,7 @@ msgid ""
 "language books."
 msgstr ""
 "Descarga metadatos y portadas de Douban.com. Sólo es útil para libros en "
-"chino."
+"idioma chino."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/sources/edelweiss.py:165
 msgid ""
@@ -5209,7 +5204,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/sources/google.py:162
 msgid "Downloads metadata and covers from Google Books"
-msgstr "Descarga metadatos y portadas de Google Books"
+msgstr "Descarga metadatos y portadas desde Google Books"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/sources/isbndb.py:24
 msgid "Downloads metadata from isbndb.com"
@@ -5253,7 +5248,7 @@ msgstr "Descargar todos los metadatos (lento)"
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/sources/overdrive.py:42
 msgid "Enable this option to gather all metadata available from Overdrive."
 msgstr ""
-"Active esta opción para recopilar todos los metadatos disponibles en "
+"Active esta opción para recopilar todos los metadatos disponibles desde "
 "Overdrive."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/sources/overdrive.py:45
@@ -5273,7 +5268,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/metadata/sources/ozon.py:20
 msgid "Downloads metadata and covers from OZON.ru"
-msgstr "Descargar metadatos y portadas de OZON.ru"
+msgstr "Descargar metadatos y portadas desde OZON.ru"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/mobi/reader/headers.py:61
 msgid "Sample Book"
@@ -5286,16 +5281,16 @@ msgstr "Este es un libro Topaz de Amazon. No se puede procesar."
 #: /home/kovid/work/calibre/src/calibre/ebooks/mobi/tweak.py:46
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/container.py:594
 msgid "This is not a MOBI file. It is a Topaz file."
-msgstr "Éste no es un archivo MOBI, es un archivo Topaz."
+msgstr "Este no es un archivo MOBI, es un archivo Topaz."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/mobi/tweak.py:51
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/container.py:599
 msgid "This is not a MOBI file."
-msgstr "Éste no es un archivo MOBI."
+msgstr "Este no es un archivo MOBI."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/mobi/tweak.py:54
 msgid "This file is locked with DRM. It cannot be tweaked."
-msgstr "Este archivo está bloqueado con DRM, no puede ser retocado."
+msgstr "Este archivo está bloqueado con DRM, no puede ser manipulado."
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/mobi/tweak.py:59
 msgid ""
@@ -5313,9 +5308,10 @@ msgid ""
 "remove the Mobi6 data, which means the file will not be usable on older "
 "Kindles. Are you sure?"
 msgstr ""
-"Este archivos MOBI contiene libros en formato KF8 y en el formato antiguo "
+"Este archivos MOBI contiene información en formato KF8 y en el antiguo "
 "Mobi6. Al retocar se eliminará el formato Mobi6, lo que significa que el "
-"archivo no podrá usarse en los Kindles más antiguos. ¿Está seguro?"
+"archivo no podrá usarse en los dispositivos Kindles más antiguos. ¿Está "
+"seguro?"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/mobi/writer2/indexer.py:464
 msgid "No details available"
@@ -5343,7 +5339,7 @@ msgstr "Glosario"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/base.py:1289
 msgid "Acknowledgements"
-msgstr "Agradecimientos"
+msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/base.py:1290
 msgid "Bibliography"
@@ -5506,8 +5502,8 @@ msgid ""
 "all the book metadata such as title, tags, authors, series, comments,\n"
 "etc.</p>"
 msgstr ""
-"<p>Insertar una página de «sobrecubierta» al principio del libr que "
-"contiene\n"
+"<p>Insertar una página de «sobrecubierta» al principio del libro "
+"conteniendo\n"
 "todos los metadatos del libro, como título, etiquetas, autores, serie,\n"
 "comentarios, etc.</p>"
 
@@ -5522,7 +5518,7 @@ msgstr "## Puliendo: %s"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/main.py:116
 msgid "Updating metadata"
-msgstr "Actualizando metados"
+msgstr "Actualizando metadatos"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/main.py:121
 msgid "Updated metadata jacket"
@@ -5649,11 +5645,11 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/pdb/ereader/reader132.py:128
 msgid "Footnotes"
-msgstr "Notas al pie"
+msgstr "Notas a pie de página"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/pdb/ereader/reader132.py:139
 msgid "Sidebar"
-msgstr "Recuadro"
+msgstr "Barra lateral"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/pdf/outline_writer.py:49
 #: /home/kovid/work/calibre/src/calibre/ebooks/pdf/outline_writer.py:60
diff --git a/src/calibre/translations/pt.po b/src/calibre/translations/pt.po
index 15740cfa98..0290b4a770 100644
--- a/src/calibre/translations/pt.po
+++ b/src/calibre/translations/pt.po
@@ -8,14 +8,14 @@ msgstr ""
 "Project-Id-Version: calibre\n"
 "Report-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>\n"
 "POT-Creation-Date: 2013-02-15 07:12+0000\n"
-"PO-Revision-Date: 2013-02-18 01:33+0000\n"
+"PO-Revision-Date: 2013-02-18 20:25+0000\n"
 "Last-Translator: pedro jorge oliveira <pedrojorgeoliveira93@gmail.com>\n"
 "Language-Team: Portuguese <pt@li.org>\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Launchpad-Export-Date: 2013-02-18 04:48+0000\n"
+"X-Launchpad-Export-Date: 2013-02-19 04:55+0000\n"
 "X-Generator: Launchpad (build 16491)\n"
 
 #: /home/kovid/work/calibre/src/calibre/customize/__init__.py:56
@@ -6843,7 +6843,7 @@ msgstr "Não foram seleccionadas acções"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:120
 msgid "You must select at least one action before saving"
-msgstr ""
+msgstr "Você deve selecionar pelo menos uma ação antes de guardar"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:122
 msgid "Choose name"
@@ -7545,7 +7545,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/add_wizard/welcome_ui.py:68
 msgid "&Root folder:"
-msgstr ""
+msgstr "&pasta raiz:"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/add_wizard/welcome_ui.py:69
 msgid ""
@@ -10376,7 +10376,7 @@ msgstr "Escolher pasta no dispositivo"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/device_drivers/mtp_folder_browser.py:105
 msgid "<b>Scanned folders:</b>"
-msgstr ""
+msgstr "<b>Pastas verificadas:</b>"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/device_drivers/mtp_folder_browser.py:106
 msgid ""
@@ -10394,7 +10394,7 @@ msgstr "Seleccionar &Nada"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/device_drivers/mtp_folder_browser.py:136
 msgid "Choose folders to scan"
-msgstr "Choose folders to scan"
+msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/dialogs/add_empty_book.py:19
 msgid "How many empty books?"
@@ -12144,7 +12144,7 @@ msgstr "Restaurando banco de dados"
 #: /home/kovid/work/calibre/src/calibre/gui2/dialogs/restore_library.py:80
 #, python-format
 msgid "The old database was saved as: %s"
-msgstr ""
+msgstr "A base de dados antiga foi salva como: %s"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/dialogs/restore_library.py:84
 #, python-format
@@ -19373,7 +19373,7 @@ msgstr "Seleccione a localização dos livros"
 #: /home/kovid/work/calibre/src/calibre/gui2/wizard/__init__.py:757
 #, python-format
 msgid "Failed to create a folder at %s"
-msgstr ""
+msgstr "Falha ao criar uma pasta em %s"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/wizard/__init__.py:772
 #, python-format
diff --git a/src/calibre/translations/pt_BR.po b/src/calibre/translations/pt_BR.po
index ebb365bb72..a8fe6b07f6 100644
--- a/src/calibre/translations/pt_BR.po
+++ b/src/calibre/translations/pt_BR.po
@@ -8,14 +8,14 @@ msgstr ""
 "Project-Id-Version: calibre\n"
 "Report-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>\n"
 "POT-Creation-Date: 2013-02-15 07:12+0000\n"
-"PO-Revision-Date: 2013-02-18 03:02+0000\n"
+"PO-Revision-Date: 2013-02-18 17:16+0000\n"
 "Last-Translator: Neliton Pereira Jr. <nelitonpjr@gmail.com>\n"
 "Language-Team: American English <kde-i18n-doc@kde.org>\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n > 1;\n"
-"X-Launchpad-Export-Date: 2013-02-18 04:48+0000\n"
+"X-Launchpad-Export-Date: 2013-02-19 04:55+0000\n"
 "X-Generator: Launchpad (build 16491)\n"
 
 #: /home/kovid/work/calibre/src/calibre/customize/__init__.py:56
@@ -946,7 +946,7 @@ msgid ""
 msgstr ""
 "    opções %prog\n"
 "\n"
-"     customiza o calibre usando plugins externos\n"
+"     personaliza o calibre usando plugins externos\n"
 "    "
 
 #: /home/kovid/work/calibre/src/calibre/customize/ui.py:610
@@ -3605,8 +3605,8 @@ msgid ""
 "first and then try it.\n"
 "%s"
 msgstr ""
-"Este arquivo RTF possui uma funcionalidade que o calibre não tem suporte "
-"para. Converta o arquivo para HTML e então tente novamente.\n"
+"Este arquivo RTF possui uma funcionalidade para as quais o calibre não tem "
+"suporte. Converta o arquivo para HTML e então tente novamente.\n"
 "%s"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/conversion/plugins/snb_output.py:22
@@ -5633,7 +5633,7 @@ msgstr "Reinício é necessário"
 #: /home/kovid/work/calibre/src/calibre/gui2/__init__.py:346
 #: /home/kovid/work/calibre/src/calibre/gui2/dialogs/plugin_updater.py:742
 msgid "Restart calibre now"
-msgstr ""
+msgstr "Reiniciar o Calibre agora"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/__init__.py:577
 msgid "Choose Files"
@@ -5993,7 +5993,7 @@ msgstr "Nova localidade da biblioteca"
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/choose_library.py:141
 #, python-format
 msgid "No existing calibre library found at %s"
-msgstr "Nenhuma biblioteca calibre encontrada em %s"
+msgstr "Nenhuma biblioteca do Calibre encontrada em %s"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/choose_library.py:152
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/copy_to_library.py:160
@@ -6002,7 +6002,7 @@ msgstr "Escolher biblioteca"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/choose_library.py:153
 msgid "Choose calibre library to work with"
-msgstr "Escolha a biblioteca do calibre para trabalhar com"
+msgstr "Escolher uma biblioteca do Calibre para trabalhar"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/choose_library.py:156
 msgid "Switch/create library..."
@@ -9517,12 +9517,12 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/search_and_replace.py:102
 msgid "Load Calibre Search-Replace definitions file"
-msgstr ""
+msgstr "Carregar arquivo de definições de pesquisa-e-substituição do Calibre"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/search_and_replace.py:104
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/search_and_replace.py:122
 msgid "Calibre Search-Replace definitions file"
-msgstr ""
+msgstr "Arquivo de definições de pesquisa-e-substituição do Calibre"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/search_and_replace.py:113
 msgid "Failed to read"
@@ -9535,7 +9535,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/search_and_replace.py:120
 msgid "Save Calibre Search-Replace definitions file"
-msgstr ""
+msgstr "Salvar arquivo de definições de pesquisa-e-substituição do Calibre"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/convert/search_and_replace.py:196
 msgid "Unused Search & Replace definition"
@@ -10225,7 +10225,7 @@ msgstr "Configura %s"
 #: /home/kovid/work/calibre/src/calibre/gui2/device.py:939
 #, python-format
 msgid "Restart calibre for the changes to %s to be applied."
-msgstr ""
+msgstr "Reiniciar o Calibre para que as alterações em %s sejam aplicadas."
 
 #: /home/kovid/work/calibre/src/calibre/gui2/device.py:981
 msgid "Error talking to device"
@@ -11156,7 +11156,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/dialogs/duplicates.py:96
 msgid "Already in calibre:"
-msgstr ""
+msgstr "Já existentes no Calibre:"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/dialogs/edit_authors_dialog.py:52
 msgid "Author sort"
@@ -13472,7 +13472,7 @@ msgstr "Notícias:"
 #: /home/kovid/work/calibre/src/calibre/gui2/email.py:146
 #, python-format
 msgid "Attached is the %s periodical downloaded by calibre."
-msgstr "Anexos são %s baixados periodicamente pelo calibre."
+msgstr "Em anexo está o  %s periódico baixado pelo Calibre."
 
 #: /home/kovid/work/calibre/src/calibre/gui2/email.py:201
 msgid "E-book:"
@@ -14327,7 +14327,7 @@ msgstr "%s já está em execução."
 
 #: /home/kovid/work/calibre/src/calibre/gui2/main.py:382
 msgid "No running calibre found"
-msgstr ""
+msgstr "Nenhum Calibre em execução encontrado"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/main.py:386
 msgid "Shutdown command sent, waiting for shutdown..."
@@ -14335,7 +14335,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/main.py:391
 msgid "Failed to shutdown running calibre instance"
-msgstr ""
+msgstr "Falha ao fechar instância do Calibre em execução"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/main_window.py:94
 msgid "&Preferences"
@@ -14771,7 +14771,7 @@ msgstr "Configura o download de metadados"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/metadata/single.py:239
 msgid "Change how calibre downloads metadata"
-msgstr "Muda como o calibre baixa metadados"
+msgstr "Alterar a maneira que o Calibre baixa os metadados"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/metadata/single.py:301
 #, python-format
@@ -16106,7 +16106,7 @@ msgstr "Amplo"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/preferences/look_feel.py:105
 msgid "Calibre style"
-msgstr ""
+msgstr "Estilo do Calibre"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/preferences/look_feel.py:105
 msgid "System default"
@@ -17782,6 +17782,8 @@ msgstr ""
 msgid ""
 "This store is currently enabled and can be used in other parts of calibre."
 msgstr ""
+"Esta loja está atualmente ativada e pode ser usada em outras partes do "
+"Calibre."
 
 #: /home/kovid/work/calibre/src/calibre/gui2/store/config/chooser/models.py:136
 msgid "This store only distributes ebooks without DRM."
@@ -17806,6 +17808,7 @@ msgstr ""
 #, python-format
 msgid "Buying from this store supports the calibre developer: %s."
 msgstr ""
+"Comprando desta loja você dá suporte ao desenvolvedor do Calibre: %s."
 
 #: /home/kovid/work/calibre/src/calibre/gui2/store/config/chooser/models.py:145
 #, python-format
@@ -17931,7 +17934,8 @@ msgstr "Ir para Loja..."
 #: /home/kovid/work/calibre/src/calibre/gui2/store/search/search.py:128
 #, python-format
 msgid "Buying from this store supports the calibre developer: %s</p>"
-msgstr "Comprar dessa loja apoia os desenvolvedores do Calibre: %s</p>"
+msgstr ""
+"Comprando desta loja você dá suporte ao desenvolvedor do Calibre: %s</p>"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/store/search/search.py:177
 msgid "No query"
@@ -18483,7 +18487,7 @@ msgstr "&Ejetar dispositivo conectado"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/ui.py:252
 msgid "Quit calibre"
-msgstr ""
+msgstr "Sair do Calibre"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/ui.py:265
 msgid "Clear the current search"
diff --git a/src/calibre/translations/zh_CN.po b/src/calibre/translations/zh_CN.po
index 92e57063ac..fe74b7670a 100644
--- a/src/calibre/translations/zh_CN.po
+++ b/src/calibre/translations/zh_CN.po
@@ -10,14 +10,14 @@ msgstr ""
 "Project-Id-Version: calibre\n"
 "Report-Msgid-Bugs-To: FULL NAME <EMAIL@ADDRESS>\n"
 "POT-Creation-Date: 2013-02-15 07:12+0000\n"
-"PO-Revision-Date: 2013-02-15 06:07+0000\n"
+"PO-Revision-Date: 2013-02-18 15:47+0000\n"
 "Last-Translator: YichangLiu <lyc001wow@gmail.com>\n"
 "Language-Team: Chinese (simplified) <i18n-zh@googlegroups.com>\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
-"X-Launchpad-Export-Date: 2013-02-16 04:55+0000\n"
+"X-Launchpad-Export-Date: 2013-02-19 04:56+0000\n"
 "X-Generator: Launchpad (build 16491)\n"
 "X-Poedit-Country: CHINA\n"
 "X-Poedit-Language: Chinese\n"
@@ -4752,7 +4752,7 @@ msgid ""
 "from Amazon. calibre can only edit MOBI files that contain KF8 books. Older "
 "MOBI files without KF8 are not editable."
 msgstr ""
-"这个 MOBI 文件并不包含 KF8 格式的图书。 KF8是来自 Amazon 的新格式。 calibre 只能编辑包含 KF8 图书的 MOBI "
+"这个 MOBI 文件并不包含 KF8 格式的书籍。 KF8是来自 Amazon 的新格式。 calibre 只能编辑包含 KF8 图书的 MOBI "
 "文件。旧的不含 KF8 的 MOBI 文件是无法编辑的。"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/container.py:613
@@ -4783,6 +4783,17 @@ msgid ""
 "\n"
 "<p>Note that polishing only works on files in the %s formats.</p>\n"
 msgstr ""
+"<p><i>润饰书籍</i>可以使你精心打造的电子书\n"
+"锦上添花。</p>\n"
+"\n"
+"<p>润饰操作力图避免改动电子书的内部代码。\n"
+"不同于转换，它 <i>不会有</i>破坏 CSS， 重命名文件，改变字体大小，\n"
+"调整页边距等操作。每项操作只会做出最低限度的改变\n"
+"以达到预期的效果。</p>\n"
+"\n"
+"<p>这个工具应该用作电子书制作过程的最后一步。</p>\n"
+"\n"
+"<p>请注意润饰只能用于 %s 格式的文件。</p>\n"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/main.py:46
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:371
@@ -4827,7 +4838,7 @@ msgstr ""
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/main.py:108
 #, python-format
 msgid "## Polishing: %s"
-msgstr ""
+msgstr "## 正在润饰: %s"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/main.py:116
 msgid "Updating metadata"
@@ -4877,7 +4888,7 @@ msgstr ""
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/main.py:155
 #, python-format
 msgid "Polishing took: %.1f seconds"
-msgstr ""
+msgstr "润饰用时: %.1f秒"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/main.py:187
 msgid ""
@@ -4896,7 +4907,7 @@ msgstr "产生更详细的输出，有利于调试。"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/main.py:204
 msgid "You must provide the input file to polish"
-msgstr ""
+msgstr "你需要指定待润饰的文件"
 
 #: /home/kovid/work/calibre/src/calibre/ebooks/oeb/polish/main.py:208
 msgid "Unknown extra arguments"
@@ -5266,7 +5277,7 @@ msgstr "您确定吗"
 msgid ""
 "Are you sure you want to add the same files to all %d books? If the format "
 "already exists for a book, it will be replaced."
-msgstr "你确定要将相同的文件加入全部 %d 本图书？如果那本书已经有这种格式，原文件将会被覆盖。"
+msgstr "你确定要将相同的文件加入全部 %d 本书籍？如果那本书已经有这种格式，原文件将会被覆盖。"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/add.py:107
 msgid "Select book files"
@@ -5303,7 +5314,7 @@ msgid ""
 "The following %d duplicate books were found and incoming book formats were "
 "processed and merged into your Calibre database according to your automerge "
 "settings:"
-msgstr "发现下列 %d 本重复的图书，而新加入图书格式已根据自动合并设定处理并合并到您的 Calibre 数据库中："
+msgstr "发现下列 %d 本重复的书籍，而新加入图书格式已根据自动合并设定处理并合并到您的 Calibre 数据库中："
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/add.py:365
 msgid "Failed to read metadata"
@@ -6325,17 +6336,17 @@ msgstr "插件更新"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:33
 msgid "Polish book"
-msgstr ""
+msgstr "润饰书籍"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:35
 #, python-format
 msgid "Polish %d books"
-msgstr ""
+msgstr "润饰  %d 本书籍"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:39
 #, python-format
 msgid "<h3>About Polishing books</h3>%s"
-msgstr ""
+msgstr "<h3>关于润饰书籍</h3>%s"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:41
 #, python-format
@@ -6371,7 +6382,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:64
 msgid "Update metadata in book files"
-msgstr ""
+msgstr "更新书籍文件中的元数据"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:65
 msgid "Add metadata as a \"book jacket\" page"
@@ -6410,7 +6421,7 @@ msgstr "没有已选操作"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:120
 msgid "You must select at least one action before saving"
-msgstr ""
+msgstr "保存前必须至少选择一项操作"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:122
 msgid "Choose name"
@@ -6422,16 +6433,16 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:177
 msgid "You must select at least one action, or click Cancel."
-msgstr ""
+msgstr "你必须选择至少一项操作，或点击取消"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:190
 msgid "Queueing books for polishing"
-msgstr ""
+msgstr "待润饰书籍排序中"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:231
 #, python-format
 msgid "Polish %s"
-msgstr ""
+msgstr "润饰 %s"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:232
 #, python-format
@@ -6461,16 +6472,15 @@ msgstr ""
 #, python-format
 msgid "The original file has been saved as %s."
 msgid_plural "The original files have been saved as %s."
-msgstr[0] ""
-msgstr[1] ""
+msgstr[0] "原文件被另存为 %s。"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:300
 msgid " and "
-msgstr ""
+msgstr " 以及 "
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:303
 msgid "If you polish again, the polishing will run on the originals."
-msgstr ""
+msgstr "如果再次润饰，润饰操作将基于原文件。"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:338
 msgid "P"
@@ -6478,24 +6488,24 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:338
 msgid "Polish books"
-msgstr ""
+msgstr "润饰书籍"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:355
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:368
 msgid "Cannot polish"
-msgstr ""
+msgstr "无法润饰"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:369
 #, python-format
 msgid ""
 "Polishing is only supported for books in the %s formats. Convert to one of "
 "those formats before polishing."
-msgstr ""
+msgstr "润饰操作仅支持 %s 格式的书籍。请在润饰前将书籍转换成上述格式之一。"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/polish.py:393
 #, python-format
 msgid "Start polishing of %d book(s)"
-msgstr ""
+msgstr "开始润饰 %d 本书籍"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/preferences.py:20
 msgid "Ctrl+P"
@@ -6883,7 +6893,7 @@ msgstr "无法优化调整书籍"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/tweak_epub.py:310
 msgid "Cannot Tweak Book"
-msgstr "无法调整图书"
+msgstr "无法调整书籍"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/tweak_epub.py:311
 msgid ""
@@ -6891,6 +6901,9 @@ msgid ""
 "\n"
 "First convert the book to one of these formats."
 msgstr ""
+"要优化调整的书籍必须是ePub，HTMLZ 或 AZW3 格式。\n"
+"\n"
+"请先将书籍转换成上述格式之一。"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/actions/view.py:37
 msgid "V"
@@ -7199,7 +7212,7 @@ msgstr "数据库中已有标题相同的书籍。确定继续添加？"
 #: /home/kovid/work/calibre/src/calibre/gui2/auto_add.py:245
 #, python-format
 msgid "Added %(num)d book(s) automatically from %(src)s"
-msgstr ""
+msgstr "已自动从 %(src)s 导入了 %(num)d 本书籍"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/bars.py:195
 #: /home/kovid/work/calibre/src/calibre/gui2/dialogs/plugin_updater.py:304
@@ -7426,7 +7439,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/catalog/catalog_epub_mobi.py:99
 msgid "Read book"
-msgstr "阅读图书"
+msgstr "阅读书籍"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/catalog/catalog_epub_mobi.py:105
 msgid "Wishlist item"
@@ -15334,7 +15347,7 @@ msgstr "在标签浏览器中显示"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/preferences/create_custom_column_ui.py:254
 msgid "Show as HTML in book details"
-msgstr "图书详情以 HTML 格式显示"
+msgstr "书籍详情以 HTML 格式显示"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/preferences/create_custom_column_ui.py:255
 #: /home/kovid/work/calibre/src/calibre/gui2/preferences/create_custom_column_ui.py:260
@@ -17416,7 +17429,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/src/calibre/gui2/store/search/search.py:301
 msgid "Customize get books search"
-msgstr "自定义获取图书搜索"
+msgstr "自定义获取书籍搜索"
 
 #: /home/kovid/work/calibre/src/calibre/gui2/store/search/search.py:311
 msgid "Configure search"
@@ -22964,7 +22977,7 @@ msgstr ""
 
 #: /home/kovid/work/calibre/resources/default_tweaks.py:473
 msgid "Number of recently viewed books to show"
-msgstr ""
+msgstr "要显示的最近查看书籍数目"
 
 #: /home/kovid/work/calibre/resources/default_tweaks.py:474
 msgid ""
@@ -22972,10 +22985,12 @@ msgid ""
 "Control\n"
 "how many should be shown, here."
 msgstr ""
+"右键点击查看按钮显示最近查看书籍。控制\n"
+"这里应显示多少本数据。"
 
 #: /home/kovid/work/calibre/resources/default_tweaks.py:478
 msgid "Change the font size of book details in the interface"
-msgstr ""
+msgstr "改变界面中书籍详细信息的字体大小"
 
 #: /home/kovid/work/calibre/resources/default_tweaks.py:479
 msgid ""