<p>The revision-proof version, which is only valid for folderCrypt mode, ensures legally and according to law that the original document, which was saved in PaperOffice, can not be changed and is always available.</p> <p>Once a document is modified, a shadow copy is created and automatically versioned. You can then save notes for this version and jump to versions at any time, just like in a time machine.</p> <p>The original document will always remain untouched as version 1.0 and can not be changed even with technical aids.</p>