diff --git a/hscommon/trans.py b/hscommon/trans.py
index 7a53618d..3ac7d06c 100644
--- a/hscommon/trans.py
+++ b/hscommon/trans.py
@@ -1,9 +1,9 @@
 # Created By: Virgil Dupras
 # Created On: 2010-06-23
 # Copyright 2015 Hardcoded Software (http://www.hardcoded.net)
-# 
-# This software is licensed under the "GPLv3" License as described in the "LICENSE" file, 
-# which should be included with this package. The terms are also available at 
+#
+# This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
+# which should be included with this package. The terms are also available at
 # http://www.gnu.org/licenses/gpl-3.0.html
 
 # Doing i18n with GNU gettext for the core text gets complicated, so what I do is that I make the
@@ -44,12 +44,34 @@ def set_tr(new_tr, new_trget=None):
 def get_locale_name(lang):
     if ISWINDOWS:
         # http://msdn.microsoft.com/en-us/library/39cwe7zf(vs.71).aspx
-        LANG2LOCALENAME = {'fr': 'fra', 'de': 'deu', 'it': 'ita', 'zh_CN': 'chs', 'cs': 'czy',
-            'nl': 'nld', 'ru': 'rus', 'pt_BR': 'ptb', 'es': 'esn'}
+        LANG2LOCALENAME = {
+            'cs': 'czy',
+            'de': 'deu',
+            'es': 'esn',
+            'fr': 'fra',
+            'it': 'ita',
+            'nl': 'nld',
+            'pl_PL': 'polish_poland',
+            'pt_BR': 'ptb',
+            'ru': 'rus',
+            'zh_CN': 'chs',
+        }
     else:
-        LANG2LOCALENAME = {'fr': 'fr_FR', 'de': 'de_DE', 'it': 'it_IT', 'zh_CN': 'zh_CN',
-            'cs': 'cs_CZ', 'nl': 'nl_NL', 'hy': 'hy_AM', 'ru': 'ru_RU', 'uk': 'uk_UA',
-            'pt_BR': 'pt_BR', 'es': 'es_ES', 'vi': 'vi_VN'}
+        LANG2LOCALENAME = {
+            'fr': 'fr_FR',
+            'de': 'de_DE',
+            'it': 'it_IT',
+            'zh_CN': 'zh_CN',
+            'cs': 'cs_CZ',
+            'nl': 'nl_NL',
+            'hy': 'hy_AM',
+            'ru': 'ru_RU',
+            'uk': 'uk_UA',
+            'pl_PL': 'pl_PL',
+            'pt_BR': 'pt_BR',
+            'es': 'es_ES',
+            'vi': 'vi_VN',
+        }
     if lang not in LANG2LOCALENAME:
         return None
     result = LANG2LOCALENAME[lang]
@@ -90,7 +112,7 @@ def install_gettext_trans(base_folder, lang):
             return gettext.translation(domain, localedir=base_folder, languages=[lang]).gettext
         except IOError:
             return lambda s: s
-    
+
     default_gettext = gettext_trget('core')
     def gettext_tr(s, context=None):
         if not context:
diff --git a/locale/pl_PL/LC_MESSAGES/columns.po b/locale/pl_PL/LC_MESSAGES/columns.po
new file mode 100644
index 00000000..8e6630d9
--- /dev/null
+++ b/locale/pl_PL/LC_MESSAGES/columns.po
@@ -0,0 +1,122 @@
+# 
+# Translators:
+msgid ""
+msgstr ""
+"Project-Id-Version: dupeGuru\n"
+"PO-Revision-Date: 2012-09-05 15:22+0000\n"
+"Language-Team: Polish (Poland) (http://www.transifex.com/projects/p/dupeguru/language/pl_PL/)\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: utf-8\n"
+"Language: pl_PL\n"
+"Plural-Forms: nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
+
+#: core/gui/ignore_list_table.py:18 core/gui/ignore_list_table.py:19
+#: core/gui/problem_table.py:17
+msgid "File Path"
+msgstr ""
+
+#: core/gui/problem_table.py:18
+msgid "Error Message"
+msgstr ""
+
+#: core/prioritize.py:63 core_me/result_table.py:24 core_pe/result_table.py:21
+#: core_se/result_table.py:21
+msgid "Kind"
+msgstr ""
+
+#: core/prioritize.py:72 core_me/result_table.py:19 core_pe/result_table.py:19
+#: core_se/result_table.py:19
+msgid "Folder"
+msgstr ""
+
+#: core/prioritize.py:88 core_me/result_table.py:18 core_pe/result_table.py:18
+#: core_se/result_table.py:18
+msgid "Filename"
+msgstr ""
+
+#: core/prioritize.py:147
+msgid "Size"
+msgstr ""
+
+#: core/prioritize.py:153 core_me/result_table.py:25
+#: core_pe/result_table.py:24 core_se/result_table.py:22
+msgid "Modification"
+msgstr ""
+
+#: core_me/prioritize.py:16
+msgid "Duration"
+msgstr ""
+
+#: core_me/prioritize.py:22 core_me/result_table.py:22
+msgid "Bitrate"
+msgstr ""
+
+#: core_me/prioritize.py:28
+msgid "Samplerate"
+msgstr ""
+
+#: core_me/result_table.py:20
+msgid "Size (MB)"
+msgstr ""
+
+#: core_me/result_table.py:21
+msgid "Time"
+msgstr ""
+
+#: core_me/result_table.py:23
+msgid "Sample Rate"
+msgstr ""
+
+#: core_me/result_table.py:26
+msgid "Title"
+msgstr ""
+
+#: core_me/result_table.py:27
+msgid "Artist"
+msgstr ""
+
+#: core_me/result_table.py:28
+msgid "Album"
+msgstr ""
+
+#: core_me/result_table.py:29
+msgid "Genre"
+msgstr ""
+
+#: core_me/result_table.py:30
+msgid "Year"
+msgstr ""
+
+#: core_me/result_table.py:31
+msgid "Track Number"
+msgstr ""
+
+#: core_me/result_table.py:32
+msgid "Comment"
+msgstr ""
+
+#: core_me/result_table.py:33 core_pe/result_table.py:25
+#: core_se/result_table.py:23
+msgid "Match %"
+msgstr ""
+
+#: core_me/result_table.py:34 core_se/result_table.py:24
+msgid "Words Used"
+msgstr ""
+
+#: core_me/result_table.py:35 core_pe/result_table.py:26
+#: core_se/result_table.py:25
+msgid "Dupe Count"
+msgstr ""
+
+#: core_pe/prioritize.py:16 core_pe/result_table.py:22
+msgid "Dimensions"
+msgstr ""
+
+#: core_pe/result_table.py:20 core_se/result_table.py:20
+msgid "Size (KB)"
+msgstr ""
+
+#: core_pe/result_table.py:23
+msgid "EXIF Timestamp"
+msgstr ""
diff --git a/locale/pl_PL/LC_MESSAGES/core.po b/locale/pl_PL/LC_MESSAGES/core.po
new file mode 100644
index 00000000..86d0bcc6
--- /dev/null
+++ b/locale/pl_PL/LC_MESSAGES/core.po
@@ -0,0 +1,231 @@
+# 
+# Translators:
+# mstefanski1987 <mstefanski1987@gmail.com>, 2014
+msgid ""
+msgstr ""
+"Project-Id-Version: dupeGuru\n"
+"PO-Revision-Date: 2014-06-09 16:28+0000\n"
+"Last-Translator: mstefanski1987 <mstefanski1987@gmail.com>\n"
+"Language-Team: Polish (Poland) (http://www.transifex.com/projects/p/dupeguru/language/pl_PL/)\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: utf-8\n"
+"Language: pl_PL\n"
+"Plural-Forms: nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
+
+#: core/app.py:39
+msgid "There are no marked duplicates. Nothing has been done."
+msgstr "Brak wykrytych duplikatów. Nic nie zrobiono."
+
+#: core/app.py:40
+msgid "There are no selected duplicates. Nothing has been done."
+msgstr "Brak wybranych duplikatów. Nic nie zrobiono."
+
+#: core/app.py:41
+msgid ""
+"You're about to open many files at once. Depending on what those files are "
+"opened with, doing so can create quite a mess. Continue?"
+msgstr ""
+
+#: core/app.py:57
+msgid "Scanning for duplicates"
+msgstr ""
+
+#: core/app.py:58
+msgid "Loading"
+msgstr ""
+
+#: core/app.py:59
+msgid "Moving"
+msgstr ""
+
+#: core/app.py:60
+msgid "Copying"
+msgstr ""
+
+#: core/app.py:61
+msgid "Sending to Trash"
+msgstr ""
+
+#: core/app.py:64
+msgid "Sending files to the recycle bin"
+msgstr ""
+
+#: core/app.py:290
+msgid ""
+"A previous action is still hanging in there. You can't start a new one yet. "
+"Wait a few seconds, then try again."
+msgstr ""
+
+#: core/app.py:297
+msgid "No duplicates found."
+msgstr "Nie znaleziono duplikatów."
+
+#: core/app.py:310
+msgid "All marked files were copied successfully."
+msgstr ""
+
+#: core/app.py:311
+msgid "All marked files were moved successfully."
+msgstr ""
+
+#: core/app.py:312
+msgid "All marked files were successfully sent to Trash."
+msgstr ""
+
+#: core/app.py:349
+msgid "'{}' already is in the list."
+msgstr "'{}' jest już na liście."
+
+#: core/app.py:351
+msgid "'{}' does not exist."
+msgstr "'{}' nie istnieje."
+
+#: core/app.py:360
+msgid ""
+"All selected %d matches are going to be ignored in all subsequent scans. "
+"Continue?"
+msgstr "Wszystkie zaznaczone %d duplikaty będą ignorowane w kolejnych skanach. Kontynuować?"
+
+#: core/app.py:426
+msgid "copy"
+msgstr "kopiuj"
+
+#: core/app.py:426
+msgid "move"
+msgstr "przenieś"
+
+#: core/app.py:427
+msgid "Select a directory to {} marked files to"
+msgstr "Wybierz katalog do {} duplikatów"
+
+#: core/app.py:464
+msgid "Select a destination for your exported CSV"
+msgstr ""
+
+#: core/app.py:489
+msgid "You have no custom command set up. Set it up in your preferences."
+msgstr ""
+
+#: core/app.py:641 core/app.py:654
+msgid "You are about to remove %d files from results. Continue?"
+msgstr ""
+
+#: core/app.py:688
+msgid "{} duplicate groups were changed by the re-prioritization."
+msgstr ""
+
+#: core/app.py:716
+msgid "Collecting files to scan"
+msgstr ""
+
+#: core/app.py:727
+msgid "The selected directories contain no scannable file."
+msgstr ""
+
+#: core/app.py:768
+msgid "%s (%d discarded)"
+msgstr ""
+
+#: core/engine.py:220 core/engine.py:265
+msgid "0 matches found"
+msgstr ""
+
+#: core/engine.py:238 core/engine.py:273
+msgid "%d matches found"
+msgstr ""
+
+#: core/engine.py:258 core/scanner.py:79
+msgid "Read size of %d/%d files"
+msgstr ""
+
+#: core/engine.py:464
+msgid "Grouped %d/%d matches"
+msgstr ""
+
+#: core/gui/deletion_options.py:69
+msgid "You are sending {} file(s) to the Trash."
+msgstr ""
+
+#: core/gui/ignore_list_dialog.py:24
+msgid "Do you really want to remove all %d items from the ignore list?"
+msgstr ""
+
+#: core/prioritize.py:68
+msgid "None"
+msgstr ""
+
+#: core/prioritize.py:96
+msgid "Ends with number"
+msgstr ""
+
+#: core/prioritize.py:97
+msgid "Doesn't end with number"
+msgstr ""
+
+#: core/prioritize.py:98
+msgid "Longest"
+msgstr ""
+
+#: core/prioritize.py:99
+msgid "Shortest"
+msgstr ""
+
+#: core/prioritize.py:132
+msgid "Highest"
+msgstr ""
+
+#: core/prioritize.py:132
+msgid "Lowest"
+msgstr ""
+
+#: core/prioritize.py:159
+msgid "Newest"
+msgstr ""
+
+#: core/prioritize.py:159
+msgid "Oldest"
+msgstr ""
+
+#: core/results.py:126
+msgid "%d / %d (%s / %s) duplicates marked."
+msgstr ""
+
+#: core/results.py:133
+msgid " filter: %s"
+msgstr ""
+
+#: core/scanner.py:99
+msgid "Read metadata of %d/%d files"
+msgstr ""
+
+#: core/scanner.py:130
+msgid "Removing false matches"
+msgstr ""
+
+#: core/scanner.py:154
+msgid "Processed %d/%d matches against the ignore list"
+msgstr ""
+
+#: core/scanner.py:176
+msgid "Doing group prioritization"
+msgstr ""
+
+#: core_pe/matchblock.py:61
+msgid "Analyzed %d/%d pictures"
+msgstr ""
+
+#: core_pe/matchblock.py:153
+msgid "Performed %d/%d chunk matches"
+msgstr ""
+
+#: core_pe/matchblock.py:158
+msgid "Preparing for matching"
+msgstr ""
+
+#: core_pe/matchblock.py:193
+msgid "Verified %d/%d matches"
+msgstr ""
+
+#: core_pe/matchexif.py:18
+msgid "Read EXIF of %d/%d pictures"
+msgstr ""
diff --git a/locale/pl_PL/LC_MESSAGES/ui.po b/locale/pl_PL/LC_MESSAGES/ui.po
new file mode 100644
index 00000000..eaddac18
--- /dev/null
+++ b/locale/pl_PL/LC_MESSAGES/ui.po
@@ -0,0 +1,819 @@
+# 
+# Translators:
+# mstefanski1987 <mstefanski1987@gmail.com>, 2014
+msgid ""
+msgstr ""
+"Project-Id-Version: dupeGuru\n"
+"PO-Revision-Date: 2014-06-09 16:24+0000\n"
+"Last-Translator: mstefanski1987 <mstefanski1987@gmail.com>\n"
+"Language-Team: Polish (Poland) (http://www.transifex.com/projects/p/dupeguru/language/pl_PL/)\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: utf-8\n"
+"Language: pl_PL\n"
+"Plural-Forms: nplurals=3; plural=(n==1 ? 0 : n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2);\n"
+
+#: cocoa/inter/app_me.py:34
+msgid "Removing dead tracks from your iTunes Library"
+msgstr "Usuwanie pustych ścieżek z biblioteki iTunes"
+
+#: cocoa/inter/app_me.py:35
+msgid "Scanning the iTunes Library"
+msgstr "Skanowanie biblioteki iTunes"
+
+#: cocoa/inter/app_me.py:158 cocoa/inter/app_pe.py:200
+msgid "Sending dupes to the Trash"
+msgstr "Wysyłanie duplikatów do kosza"
+
+#: cocoa/inter/app_me.py:160
+msgid "Talking to iTunes. Don't touch it!"
+msgstr "Rozmawiam z iTunes. Nie dotykaj go!"
+
+#: cocoa/inter/app_me.py:195
+msgid ""
+"Your iTunes Library contains %d dead tracks ready to be removed. Continue?"
+msgstr "Twoja biblioteka iTunes zawiera %d pustych ścieżek gotowych do usunięcia. Kontynuować?"
+
+#: cocoa/inter/app_me.py:199
+msgid "You have no dead tracks in your iTunes Library"
+msgstr "Nie masz pustych ścieżek w bibliotece iTunes."
+
+#: cocoa/inter/app_me.py:217
+msgid "The iTunes application couldn't be found."
+msgstr "Aplikacja iTunes nie została znaleziona."
+
+#: cocoa/inter/app_pe.py:202
+msgid "Talking to iPhoto. Don't touch it!"
+msgstr "Rozmawiam z iPhoto. Nie dotykaj go!"
+
+#: cocoa/inter/app_pe.py:211
+msgid "Talking to Aperture. Don't touch it!"
+msgstr "Rozmawiam z Aperture. Nie dotykaj go!"
+
+#: cocoa/inter/app_pe.py:284
+msgid "Deleted Aperture photos were sent to a project called \"dupeGuru Trash\"."
+msgstr "Usunięte zdjęcia z Aperture zostały przeniesione do projektu \"dupeGuru Trash\"."
+
+#: cocoa/inter/app_pe.py:310
+msgid "The iPhoto application couldn't be found."
+msgstr "Aplikacja iPhoto nie została znaleziona."
+
+#: qt/base/app.py:83
+msgid "Quit"
+msgstr "Wyjdź"
+
+#: qt/base/app.py:84 qt/base/preferences_dialog.py:123
+msgid "Preferences"
+msgstr "Ustawienia"
+
+#: qt/base/app.py:85 qt/base/ignore_list_dialog.py:32
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Ignore List"
+msgstr "Lista ignorowanych"
+
+#: qt/base/app.py:86 cocoa/base/en.lproj/Localizable.strings:0
+msgid "dupeGuru Help"
+msgstr "Pomoc dupeGuru"
+
+#: qt/base/app.py:87 cocoa/base/en.lproj/Localizable.strings:0
+msgid "About dupeGuru"
+msgstr "O dupeGuru"
+
+#: qt/base/app.py:88
+msgid "Check for Update"
+msgstr "Sprawdź aktualizacje"
+
+#: qt/base/app.py:89
+msgid "Open Debug Log"
+msgstr "Otwórz Log aplikacji"
+
+#: qt/base/app.py:198
+msgid "{} file (*.{})"
+msgstr "Plik {} (*.{})"
+
+#: qt/base/deletion_options.py:30 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Deletion Options"
+msgstr "Opcje usuwania"
+
+#: qt/base/deletion_options.py:35 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Link deleted files"
+msgstr "Twórz dowiązania dla usuniętych plików"
+
+#: qt/base/deletion_options.py:37 cocoa/base/en.lproj/Localizable.strings:0
+msgid ""
+"After having deleted a duplicate, place a link targeting the reference file "
+"to replace the deleted file."
+msgstr "Po usunięciu duplikatu, utwórz link wskazujący na plik referencyjny w miejsce usuniętego pliku."
+
+#: qt/base/deletion_options.py:42
+msgid "Hardlink"
+msgstr "Twardy link"
+
+#: qt/base/deletion_options.py:42
+msgid "Symlink"
+msgstr "Symlink"
+
+#: qt/base/deletion_options.py:46
+msgid " (unsupported)"
+msgstr ""
+
+#: qt/base/deletion_options.py:47 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Directly delete files"
+msgstr "Usuwaj pliki zamiast przenosić do kosza"
+
+#: qt/base/deletion_options.py:49 cocoa/base/en.lproj/Localizable.strings:0
+msgid ""
+"Instead of sending files to trash, delete them directly. This option is "
+"usually used as a workaround when the normal deletion method doesn't work."
+msgstr "Zamiast przenosić pliki do kosza, usuwaj je. Ta opcja może służyć za obejście, jeśli przenoszenie do kosza nie działa."
+
+#: qt/base/deletion_options.py:55 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Proceed"
+msgstr "Kontynuuj"
+
+#: qt/base/deletion_options.py:56 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Cancel"
+msgstr "Anuluj"
+
+#: qt/base/details_table.py:16 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Attribute"
+msgstr "Właściwość"
+
+#: qt/base/details_table.py:16 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Selected"
+msgstr "Zaznaczony"
+
+#: qt/base/details_table.py:16 qt/base/directories_model.py:22
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Reference"
+msgstr "Odwołanie"
+
+#: qt/base/directories_dialog.py:58 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Load Results..."
+msgstr "Wczytaj wyniki..."
+
+#: qt/base/directories_dialog.py:59 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Results Window"
+msgstr "Okno wyników"
+
+#: qt/base/directories_dialog.py:60
+msgid "Add Folder..."
+msgstr "Dodaj folder..."
+
+#: qt/base/directories_dialog.py:68 qt/base/result_window.py:77
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "File"
+msgstr "Plik"
+
+#: qt/base/directories_dialog.py:70 qt/base/result_window.py:85
+msgid "View"
+msgstr "Widok"
+
+#: qt/base/directories_dialog.py:72 qt/base/result_window.py:87
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Help"
+msgstr "Pomoc"
+
+#: qt/base/directories_dialog.py:74 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Load Recent Results"
+msgstr "Wczytaj ostatnie wyniki"
+
+#: qt/base/directories_dialog.py:108 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Select folders to scan and press \"Scan\"."
+msgstr "Wybierz foldery do przeskanowania i wciśnij \"Skanuj\"."
+
+#: qt/base/directories_dialog.py:132 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Load Results"
+msgstr "Wczytaj wyniki"
+
+#: qt/base/directories_dialog.py:135 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Scan"
+msgstr "Skanuj"
+
+#: qt/base/directories_dialog.py:179
+msgid "Unsaved results"
+msgstr "Niezapisane wyniki"
+
+#: qt/base/directories_dialog.py:180 cocoa/base/en.lproj/Localizable.strings:0
+msgid "You have unsaved results, do you really want to quit?"
+msgstr "Masz niezapisane wyniki wyszukiwania, czy na pewno chcesz wyjść?"
+
+#: qt/base/directories_dialog.py:188 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Select a folder to add to the scanning list"
+msgstr "Wybierz folder aby dodać go do listy do przeskanowania"
+
+#: qt/base/directories_dialog.py:205 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Select a results file to load"
+msgstr "Wybierz plik wyniku skanowania do wczytania"
+
+#: qt/base/directories_dialog.py:206
+msgid "All Files (*.*)"
+msgstr "Wszystkie pliki (*.*)"
+
+#: qt/base/directories_dialog.py:206 qt/base/result_window.py:287
+msgid "dupeGuru Results (*.dupeguru)"
+msgstr "Wyniki dupeGuru (*.dupeguru)"
+
+#: qt/base/directories_dialog.py:217
+msgid "Start a new scan"
+msgstr "Rozpocznij nowe skanowanie"
+
+#: qt/base/directories_dialog.py:218 cocoa/base/en.lproj/Localizable.strings:0
+msgid "You have unsaved results, do you really want to continue?"
+msgstr "Masz niezapisane wyniki wyszukiwania, czy na pewno chcesz kontynuować?"
+
+#: qt/base/directories_model.py:21 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Name"
+msgstr "Nazwa"
+
+#: qt/base/directories_model.py:21 cocoa/base/en.lproj/Localizable.strings:0
+msgid "State"
+msgstr "Stan"
+
+#: qt/base/directories_model.py:22 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Excluded"
+msgstr "Wykluczony"
+
+#: qt/base/directories_model.py:22 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Normal"
+msgstr "Normalny"
+
+#: qt/base/ignore_list_dialog.py:45 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Remove Selected"
+msgstr "Usuń zaznaczone"
+
+#: qt/base/ignore_list_dialog.py:46 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Clear"
+msgstr "Wyczyść"
+
+#: qt/base/ignore_list_dialog.py:47 qt/base/problem_dialog.py:57
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Close"
+msgstr "Zamknij"
+
+#: qt/base/preferences_dialog.py:37 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Scan Type:"
+msgstr "Rodzaj skanowania:"
+
+#: qt/base/preferences_dialog.py:50
+msgid "Filter Hardness:"
+msgstr "Siła filtru:"
+
+#: qt/base/preferences_dialog.py:76
+msgid "More Results"
+msgstr "Więcej wyników"
+
+#: qt/base/preferences_dialog.py:81
+msgid "Fewer Results"
+msgstr "Mniej wyników"
+
+#: qt/base/preferences_dialog.py:88
+msgid "Font size:"
+msgstr "Wielkość czcionki:"
+
+#: qt/base/preferences_dialog.py:92
+msgid "Language:"
+msgstr "Język:"
+
+#: qt/base/preferences_dialog.py:98 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Copy and Move:"
+msgstr "Kopiuj i przenieś:"
+
+#: qt/base/preferences_dialog.py:101 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Right in destination"
+msgstr ""
+
+#: qt/base/preferences_dialog.py:102 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Recreate relative path"
+msgstr ""
+
+#: qt/base/preferences_dialog.py:103 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Recreate absolute path"
+msgstr ""
+
+#: qt/base/preferences_dialog.py:106
+msgid "Custom Command (arguments: %d for dupe, %r for ref):"
+msgstr ""
+
+#: qt/base/preferences_dialog.py:184
+msgid "dupeGuru has to restart for language changes to take effect."
+msgstr ""
+
+#: qt/base/prioritize_dialog.py:71 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Re-Prioritize duplicates"
+msgstr ""
+
+#: qt/base/prioritize_dialog.py:75 cocoa/base/en.lproj/Localizable.strings:0
+msgid ""
+"Add criteria to the right box and click OK to send the dupes that correspond"
+" the best to these criteria to their respective group's reference position. "
+"Read the help file for more information."
+msgstr ""
+
+#: qt/base/problem_dialog.py:31 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Problems!"
+msgstr ""
+
+#: qt/base/problem_dialog.py:35 cocoa/base/en.lproj/Localizable.strings:0
+msgid ""
+"There were problems processing some (or all) of the files. The cause of "
+"these problems are described in the table below. Those files were not "
+"removed from your results."
+msgstr ""
+
+#: qt/base/problem_dialog.py:52
+msgid "Reveal Selected"
+msgstr ""
+
+#: qt/base/result_window.py:44 qt/base/result_window.py:170
+#: qt/me/details_dialog.py:20 qt/pe/details_dialog.py:26
+#: qt/se/details_dialog.py:20 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Details"
+msgstr ""
+
+#: qt/base/result_window.py:45 qt/base/result_window.py:81
+#: qt/base/result_window.py:145 qt/base/result_window.py:169
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Actions"
+msgstr ""
+
+#: qt/base/result_window.py:46 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Show Dupes Only"
+msgstr ""
+
+#: qt/base/result_window.py:47 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Show Delta Values"
+msgstr ""
+
+#: qt/base/result_window.py:48
+msgid "Send Marked to Recycle Bin..."
+msgstr ""
+
+#: qt/base/result_window.py:49 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Move Marked to..."
+msgstr ""
+
+#: qt/base/result_window.py:50 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Copy Marked to..."
+msgstr ""
+
+#: qt/base/result_window.py:51 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Remove Marked from Results"
+msgstr ""
+
+#: qt/base/result_window.py:52 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Re-Prioritize Results..."
+msgstr ""
+
+#: qt/base/result_window.py:53 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Remove Selected from Results"
+msgstr ""
+
+#: qt/base/result_window.py:54 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Add Selected to Ignore List"
+msgstr ""
+
+#: qt/base/result_window.py:55 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Make Selected into Reference"
+msgstr ""
+
+#: qt/base/result_window.py:56 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Open Selected with Default Application"
+msgstr ""
+
+#: qt/base/result_window.py:57
+msgid "Open Containing Folder of Selected"
+msgstr ""
+
+#: qt/base/result_window.py:58 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Rename Selected"
+msgstr ""
+
+#: qt/base/result_window.py:59 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Mark All"
+msgstr ""
+
+#: qt/base/result_window.py:60 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Mark None"
+msgstr ""
+
+#: qt/base/result_window.py:61 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Invert Marking"
+msgstr ""
+
+#: qt/base/result_window.py:62 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Mark Selected"
+msgstr ""
+
+#: qt/base/result_window.py:63
+msgid "Export To HTML"
+msgstr ""
+
+#: qt/base/result_window.py:64
+msgid "Export To CSV"
+msgstr ""
+
+#: qt/base/result_window.py:65 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Save Results..."
+msgstr ""
+
+#: qt/base/result_window.py:66 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Invoke Custom Command"
+msgstr ""
+
+#: qt/base/result_window.py:79
+msgid "Mark"
+msgstr ""
+
+#: qt/base/result_window.py:83 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Columns"
+msgstr ""
+
+#: qt/base/result_window.py:141
+msgid "Reset to Defaults"
+msgstr ""
+
+#: qt/base/result_window.py:163
+msgid "{} Results"
+msgstr ""
+
+#: qt/base/result_window.py:171 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Dupes Only"
+msgstr ""
+
+#: qt/base/result_window.py:172
+msgid "Delta Values"
+msgstr ""
+
+#: qt/base/result_window.py:286 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Select a file to save your results to"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:39 qt/se/preferences_dialog.py:39
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Filename"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:40 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Filename - Fields"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:41 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Filename - Fields (No Order)"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:42 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Tags"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:43 qt/pe/preferences_dialog.py:33
+#: qt/se/preferences_dialog.py:40 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Contents"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:44
+msgid "Audio Contents"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:55 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Tags to scan:"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:61 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Track"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:63 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Artist"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:65 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Album"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:67 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Title"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:69 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Genre"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:71 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Year"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:75 qt/se/preferences_dialog.py:49
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Word weighting"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:77 qt/se/preferences_dialog.py:51
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Match similar words"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:79 qt/pe/preferences_dialog.py:41
+#: qt/se/preferences_dialog.py:53 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Can mix file kind"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:81 qt/pe/preferences_dialog.py:43
+#: qt/se/preferences_dialog.py:55 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Use regular expressions when filtering"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:83 qt/pe/preferences_dialog.py:45
+#: qt/se/preferences_dialog.py:57 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Remove empty folders on delete or move"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:85 qt/pe/preferences_dialog.py:47
+#: qt/se/preferences_dialog.py:76 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Ignore duplicates hardlinking to the same file"
+msgstr ""
+
+#: qt/me/preferences_dialog.py:87 qt/pe/preferences_dialog.py:49
+#: qt/se/preferences_dialog.py:78 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Debug mode (restart required)"
+msgstr ""
+
+#: qt/pe/preferences_dialog.py:34 cocoa/base/en.lproj/Localizable.strings:0
+msgid "EXIF Timestamp"
+msgstr ""
+
+#: qt/pe/preferences_dialog.py:39 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Match pictures of different dimensions"
+msgstr ""
+
+#: qt/pe/result_window.py:19 qt/pe/result_window.py:25
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Clear Picture Cache"
+msgstr ""
+
+#: qt/pe/result_window.py:26 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Do you really want to remove all your cached picture analysis?"
+msgstr ""
+
+#: qt/pe/result_window.py:29
+msgid "Picture cache cleared."
+msgstr ""
+
+#: qt/se/preferences_dialog.py:41 cocoa/base/en.lproj/Localizable.strings:0
+msgid "Folders"
+msgstr ""
+
+#: qt/se/preferences_dialog.py:60
+msgid "Ignore files smaller than"
+msgstr ""
+
+#: qt/se/preferences_dialog.py:71 cocoa/base/en.lproj/Localizable.strings:0
+msgid "KB"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "%@ Results"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Action"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Add Aperture Library"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Add iPhoto Library"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Add iTunes Library"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Add New Folder..."
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Advanced"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Audio Content"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Automatically check for updates"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Basic"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Bring All to Front"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Check for update..."
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Close Window"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Content"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Copy"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Custom command (arguments: %d for dupe, %r for ref):"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Cut"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Delta"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Details of Selected File"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Details Panel"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Directories"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "dupeGuru"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "dupeGuru ME Preferences"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "dupeGuru PE Preferences"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "dupeGuru Preferences"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "dupeGuru Results"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "dupeGuru Website"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Edit"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Export Results to CSV"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Export Results to XHTML"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Fewer results"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Filter"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Filter hardness:"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Filter Results..."
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Folder Selection Window"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Font Size:"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Hide dupeGuru"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Hide Others"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Ignore files smaller than:"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Load from file..."
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Minimize"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Mode"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "More results"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Ok"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Options"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Paste"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Preferences..."
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Quick Look"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Quit dupeGuru"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Remove Dead Tracks in iTunes"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Reset to Default"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Reset To Defaults"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Reveal"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Reveal Selected in Finder"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Select All"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Send Marked to Trash..."
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Services"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Show All"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Start Duplicate Scan"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "The name '%@' already exists."
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Window"
+msgstr ""
+
+#: cocoa/base/en.lproj/Localizable.strings:0
+msgid "Zoom"
+msgstr ""
diff --git a/qt/base/preferences_dialog.py b/qt/base/preferences_dialog.py
index 70606d04..eb3d2d45 100644
--- a/qt/base/preferences_dialog.py
+++ b/qt/base/preferences_dialog.py
@@ -19,7 +19,9 @@ from qtlib.preferences import LANGNAMES
 
 tr = trget('ui')
 
-SUPPORTED_LANGUAGES = ['en', 'fr', 'de', 'zh_CN', 'cs', 'it', 'hy', 'ru', 'uk', 'pt_BR', 'vi']
+SUPPORTED_LANGUAGES = [
+    'en', 'fr', 'de', 'zh_CN', 'cs', 'it', 'hy', 'ru', 'uk', 'pt_BR', 'vi', 'pl_PL',
+]
 
 class PreferencesDialogBase(QDialog):
     def __init__(self, parent, app, **kwargs):
diff --git a/qtlib/preferences.py b/qtlib/preferences.py
index 6143bed3..a24d0232 100644
--- a/qtlib/preferences.py
+++ b/qtlib/preferences.py
@@ -1,9 +1,9 @@
 # Created By: Virgil Dupras
 # Created On: 2009-05-03
 # Copyright 2015 Hardcoded Software (http://www.hardcoded.net)
-# 
-# This software is licensed under the "GPLv3" License as described in the "LICENSE" file, 
-# which should be included with this package. The terms are also available at 
+#
+# This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
+# which should be included with this package. The terms are also available at
 # http://www.gnu.org/licenses/gpl-3.0.html
 
 from PyQt5.QtCore import Qt, QSettings, QRect
@@ -24,6 +24,7 @@ LANGNAMES = {
     'ru': tr("Russian"),
     'uk': tr("Ukrainian"),
     'nl': tr('Dutch'),
+    'pl_PL': tr("Polish"),
     'pt_BR': tr("Brazilian"),
     'es': tr("Spanish"),
     'vi': tr("Vietnamese"),
@@ -62,17 +63,17 @@ class Preferences:
     def __init__(self):
         self.reset()
         self._settings = QSettings()
-    
+
     def _load_values(self, settings, get):
         pass
-    
+
     def get_rect(self, name, default=None):
         r = self.get_value(name, default)
         if r is not None:
             return QRect(*r)
         else:
             return None
-    
+
     def get_value(self, name, default=None):
         if self._settings.contains(name):
             result = adjust_after_deserialization(self._settings.value(name))
@@ -84,29 +85,29 @@ class Preferences:
                 return default
         else:
             return default
-    
+
     def load(self):
         self.reset()
         self._load_values(self._settings)
-    
+
     def reset(self):
         pass
-    
+
     def _save_values(self, settings, set_):
         pass
-    
+
     def save(self):
         self._save_values(self._settings)
         self._settings.sync()
-    
+
     def set_rect(self, name, r):
         if isinstance(r, QRect):
             rectAsList = [r.x(), r.y(), r.width(), r.height()]
             self.set_value(name, rectAsList)
-    
+
     def set_value(self, name, value):
         self._settings.setValue(name, normalize_for_serialization(value))
-    
+
     def saveGeometry(self, name, widget):
         # We save geometry under a 5-sized int array: first item is a flag for whether the widget
         # is maximized and the other 4 are (x, y, w, h).
@@ -114,7 +115,7 @@ class Preferences:
         r = widget.geometry()
         rectAsList = [r.x(), r.y(), r.width(), r.height()]
         self.set_value(name, [m] + rectAsList)
-    
+
     def restoreGeometry(self, name, widget):
         l = self.get_value(name)
         if l and len(l) == 5:
@@ -124,4 +125,4 @@ class Preferences:
             else:
                 r = QRect(x, y, w, h)
                 widget.setGeometry(r)
-    
+