PDF-XChange Viewer


PDF-XChange Viewer is a proprietary PDF reader for Microsoft Windows available for free. Its further development has been stopped in favour of freemium shareware PDF-Xchange Editor, which replaces it; future releases are maintenance updates only.
The free basic reader includes extended/markup capabilities such as typing, highlighting, callouts, and notes. Another useful feature is its ability to display PDF files in the "preview" pane of the Windows Explorer without locking the file.
An advanced paid version was also available.
It supports saving of filled PDF forms and import/export of form data in FDF/XFDF format. Since version 2.5 there has been partial support for XFA and export of form data in XDP or XML format. It added OCR support as of version 2.5.
PDF-XChange Lite print driver is a print driver enabling the creation of PDFs from Microsoft Windows applications. It is free for academic and home use. Also available is PDF-XChange Standard, which brings advanced PDF creation options.
A related product is PDF-Tools, which allows creation and manipulation of PDFs from a variety of sources including images, text documents, etc. Batch conversion capabilities with filename macros are included.
Finally, a number of PDF-related SDKs for developers are available, including PDF Tools SDK, PDF-XChange Viewer SDK, PDF-XChange Drivers SDK, and Image SDKs. These allow creation, manipulation, reading, writing, OCR, search, and display of PDFs; and multi-language support.
PDF-XChange Viewer works under Wine, providing another way to annotate PDFs under Linux.