Presto! PageManager 9 SE (MAC) Merge PDF files into multi-page PDF files and split multi-page PDF files into single-page PDF files. OCR recognizes text on an image file and converts it into a text format. The relative position of the recognized text and image remains the same. Add Text, Highlights, and Sticky Notes with PDF Annotations. Stack various types of files for easy organizing or PDF conversioneven those in different formats.