KaneMiki made the following 6 translations:

• 'Open Attachment' as '添付を開く' in SumatraPDF / ja
• 'Save Attachment...' as '添付を保存' in SumatraPDF / ja
• 'Show in folder' as 'フォルダを表示' in SumatraPDF / ja
• 'Close Tabs To The Right' as '右側のタブを閉じる' in SumatraPDF / ja
• 'Close Other Tabs' as '他のタブを閉じる' in SumatraPDF / ja
• '&Odd pages only' as '奇数ページのみ(&O)' in SumatraPDF / ja