If what you described is accurate, that you have a photo of some text, then you will NOT be able to highlight it and copy the text out of the photo. If you can't do the translation by reading the text from the photo and you have to have the text in a text file in order to process it with some sort of translation software, there are 2 ways you could do it. You could read the text from the photo and manually type it into a text file or you could use OCR (Optical Character Recognition) software to attempt to convert the text in the photo to a text file. OCR software often is included with scanners so, if you own a scanner, you may also have some OCR software. If not, use your favorite search engine to locate some free OCR software to download.