Methods, systems, and computer-readable media for synchronizing and sharing of relatively large, modifiable documents with multiple clients utilizing a variety of devices. The method receives instructions from one or more clients regarding a preferable format for use with a respective client device. The method further defines subsections of the shared document based upon semantic breaks within the original document and generates a subsection ID for each subsection. The subsection IDs are sent to the clients who can review the IDs and request to receive one or more subsections on their respective device. The requested subsections are transcoded for use on the respective client devices and sent to the client according to their requests. The clients may then modify the one or more subsections and these modifications are applied to corresponding subsections on other client devices.