KK OCR extracts editable text from images,this app is free,easy to use,off-line convert, enjoy it.
KK OCR is compatible with 13 languages including:
English,Chinese Traditional,Chinese Simplify,Japanese,Korea,Russian,German,French,Italian,Spanish,Greek,Thai,Dutch,Malay
First click 'OCR from Camera' or 'OCR from Photo' to select an image.
Select convert language on the bottom
Use the magic wand icon on the button, you can mark texts that only want to be converted.
iTunes download link: https://itunes.apple.com/us/app/kk-ocr/id686822996?mt=8