The JDFToolbox is a set of JDF Tools. The major tool in box is CheckJDF. CheckJDF enables you to validate JDF Documents. As a result you will get a report of issues. FixJDF is another tool in the JDFToolbox. Using FixJDF you are able to convert JDF Documents between the different versions. Both features are also available in the JDFEditor. A stand alone version of these tools is available at: https://toolbox.cip4.org
