pdfMachine pro can convert scanned pages to searchable text. This text can also be copied and pasted. Use pdfScanMachine with OCR checked to scan the pages into PDF. The text version of the image will be stored invisibly with the PDF so that your PDF looks the same yet you can search for, or copy and paste the text.
You can also use pdfMachine to open an existing PDF of a scanned page. Then use the OCR feature to convert the contents into searchable text.
pdfMachine converts scanned images to text in 65 languages.Click here for more information.