We have a compilation of several hundred .pdf documents stored in a filesystem by logical document types. Each document type has it's own .pdx full text index. These files are available to browse by authenticated users on a secure website. These pdf files are updated daily and a batch process to reindex runs every night. We are looking for a solution as to how we can automate the advanced search capability to select all required indexes while restricting them from being able to bypass the security and link directly to the filesystem. But we need them to be able to use and attach the indexes.