Aspose.Pdf.Kit is a Java component for PDF document manipulation of both windows and web based Java applications. It supports adding digital signatures, CJK fonts, annotations and creating PDF bookmarks. Other features include: encrypting or decrypting a PDF file, extracting or adding images and text, modifying meta information of a PDF, adding watermark or logo, font styles, modifying AcroForm, filling XFA fields in PDF, appending pages and converting PDF file to a single Tiff file or XML file.