Is it possible to OCR scanned PDF files?
OCR is one of the many useful things that you can do with PDF files. If you have a scanned PDF file that is stored as an image, OCR can make the file text-searchable for you, so that you can work with its contents. PDF files are great for OCR because that can have extremely high image quality, contributing to OCR accuracy.

Advantages of working with scanned PDFs
One of the many advantages of working with scanned PDF files is their capacity to hold a great deal of information, resulting in high-quality images. However, this can also produce inconveniently large file size, which brings up the next advantage of working with PDF files: the ability to compress them to a fraction of their original size, without information loss.
Software that combines PDF OCR with other tools
It is useful to have software that can combine PDF OCR with file compression, as the two often go hand in hand. A program that does this is PdfCompressor from CVISION. In one simple step, PdfCompressor can convert files to PDF from other formats, compress them, and OCR them. To see how easy and convenient this program is, download the free trial version.