Use a PDF converter but with OCR feature. OCR helps recognize texts from image-based files, like images, scanned PDFs. For Mac users, Cisdem PDF Converter OCR is recommended, it can. Convert both image and scanned PDF to editable Word format; OCR scanned files to searchable PDF, PowerPoint, Text, ePub, etc.; Batch convert and OCR; Create PDF from Word, PowerPoint and so on; Convert native PDF to 10+ formats; Accurate and high quality conversion; It is easy to use, add file>turn OCR ON>Choose output and file language>Convert. For Windows users, Nitro PDF is recommended. It can. Create PDF from blank page, Word and others; Convert and OCR PDF or images; Edit PDF; Manage, fill form, sign, protects PDFs; It can recognize files automatically, you just need to import file to the program, choose output as Word, then save it.
More details can be found at PDF_OCR2.