This summary is not the rule. The rule text controls.
If you file paperwork with the Kansas appellate courts, that document becomes part of the official case file. Once it's filed, no one can take it out of the clerk's office or remove it from the clerk's control without getting permission first.
This rule protects the case file from being tampered with or having pages go missing. It applies to everyone involved in a case, including lawyers and parties, not just outside members of the public. If you need to remove a document for any reason, you have to ask the clerk of the appellate courts and get the okay before you do it.