With update revision 2159, OCR text recognition in webPDF was improved. Documents can now be optimized before recognition to increase result quality.
This example explains how to use the OCR webservice of webPDF. OCR in webPDF is based on Tesseract. By default, German, English, French, Spanish, and Italian are supported. Additional languages can be installed in the Tesseract folder (see the webPDF manual for details).
Languages using a multibyte character set are currently not supported, for example Arabic and several Far Eastern languages. OCR is mainly useful for documents that contain text visually, but not as embedded searchable text. For extracting already embedded text from PDF documents, webPDF provides an option in the Toolbox webservice.
