The PDF-XChange Viewer evaluation version is free for private and commercial use, provided it is not bundled with other software for financial gain. When PDF-XChange Viewer is used in evaluation mode, many menu items are marked with a symbol, which indicates that they are licensed features. These features can still be used, but watermarks will be present on output content, as detailed below. Please note that it is not possible to remove evaluation watermarks without a user license. If you want to experiment with the licensed features then we recommend creating a copy of documents with which to experiment.