Sure, others can download the files, but they won't be able to install them on their systems. Nor will they be able to use them on their web sites. The outlines in the PFR are fully scalable, and can be viewed in Netscape Communicator for Windows, Macintosh, and Unix, and Internet Explorer for Windows. Whether or not you can do this depends on your authoring tool. Simple tools, such as Netscape Composer, generally allow only the entry of a single publishing domain.
More advanced tools can provide the ability to lock a document to multiple domains.
Check with your authoring tool vendor. Depending on your authoring tool, the DocLock keys are created either when you create the PFRs or when you publish your documents to the server. Each key associates the PFR with a specific directory that you are publishing to. The PFR works only with HTML files saved in that specific directory, or a subdirectory of that directory, on your web server. Other people cannot steal your PFRs and use them with their own HTML documents.