When trying to copy a block of text from a PDF file under DT Pro Office (v 2.8.9), the strings “fi” and “fl” are omitted when pasted. For example, the following is the result:
Do you have a machine in your of ce with a oppy disc drive? If so, do you have software capable of deciphering the le?
This does not happen when copying the text from the PDF in Preview.
Try Data > Convert > to Plain Text with that PDF, which will make a plain text copy of the OCR text layer – just to see if the text has been recognized in the OCR process.
If the problem persists – and is affecting more than one document – your might want to open a Support ticket and include a copy of the problematic PDF.