Asprise offers PDF writer and reader library (with text extact function) as valued add-on to our flagship products � Asprise OCR & JTwain. Portable Document Format (PDF) is a file format widely used for all kinds of documents. With Asprise Java PDF library, you can easily create, manipulate (read and write), disassemble PDF files easily. You can also use it to extract text and then index the text extracted for search. By using this library and Asprise OCR engine, now you can OCR images stored in PDF files too.