In most cases, new documents are created by importing them. In addition to importing documents, you can create new documents from an existing document or from a thumbnail. The newly created document will be of the same file type as the original document.
The new document created can become a revision of an existing selected document or an entirely new document.
A revisable document will not have its initial revision created until it has been indexed. Prior to indexing, all changes to the document will not create a new revision.
A revision of a document cannot be created while the document is locked.