Some services or programs can scan your document, use OCR to convert the scanned image to readable text, and save the result as a PDF. However, these services and programs often cost money.

Go to the "File" menu, select "Open" and choose your scanned PDF document. At this point, your scan is considered a single image by the program and the text areas are not editable.

By transforming a PDF file into an editable document, you can easily select and modify text on the converted text—similar to how you’d do if you created the document yourself.

PDF Replacer free version can replace text in a PDF file, keeping the original PDF layout. If you have a PDF file that is of less than 100 pages, you can use this tool without paying anything.

iOS 15.4 brought a new level to scanning on iPhones and iPads when it introduced the scan text feature. With this tool, you can scan your written grocery list or to-dos into your phone’s notes app.