What to do with non-searchable PDF documents
Non-searchable PDF documents can be a major inconvenience to deal with because they do not give you access to work with the text. When a document is scanned into a PDF file, the text is not automatically searchable, and is instead saved as an image. This prevents you from working with the document as you would with other text files. Fortunately, you can convert the document into a more user-friendly format by using software to OCR PDF files.
How OCR works
OCR stands for optical character recognition. This technology identifies text characters based on their optical properties, using shapes and outlines to locate words and numbers on the page. Using OCR software, you can convert entire documents into a searchable, editable format. Even if you have an entire book saved as a scanned PDF, you can use OCR software to transform it into the searchable format that you need.
Free OCR PDF software
If you are looking for free OCR software, the optimal solution would be to use a free trial of a professional tool, because free online tools do not do the job with any acceptable level of reliability. If you have never used OCR and are not sure which program is best for you, try Maestro Recognition Server, a tool that leaves everyone satisfied with the results. To test out Maestro for yourself, download the free trial version.