Readiris allows you to “repurpose”, convert PDF files.
Convert image to text: you can open image-based PDF documents, execute the recognition and save the OCR result to a text document (in any supported text format). (Text files are editable, image files are not.)
Convert image PDFs to text PDFs: you can execute the recognition on image-based PDF files and save the OCR results... as text-based PDF documents! (Text-based PDF files are searchable and editable, “image-only” PDF files are not.)
“Unlock” PDF content: you can convert “read-only” PDF documents, where the text is normally inaccessible. With unprotected PDF files, the content can be retrieved (copied and saved to a text file), with “read-only” files, the content cannot be extracted. These documents can only be viewed and printed! After the file conversion by Readiris, the text can be accessed freely!
Warning: Readiris does not open password-protected PDF documents. (All other PDF security barriers are broken down by Readiris!)
Proceed as usual: load PDF files into memory as you open prescanned images - faxes, snapshots made with your digital camera etc.
Tip: you can click the Stop button and press Escape to interrupt the loading process between two pages.
Tip: you can open the PDF files as color and as black-and-white documents! (Opening color documents is much slower.)
Readiris creates Text and Image-Text PDF files, and it is crucial that one understands the differences between these two file types!
Readiris recognizes the text and creates PDF documents that contain the text (and possibly graphic zones for photographs, artwork etc.).
The page image is not contained in the single-layered PDF files.
Tip: “text only” PDF files are much more compact than image files!
Readiris recognizes the text and creates PDF documents that contain the page image and the recognized text.
The page image is contained in two-layered PDF files above the text.
Note: compression is used for all elements. Black-and-white images are Group 4 compressed TIFF files, greyscale and color images are JPEG files with high (0.8) quality. Any text is compressed using the Gzip mode.