Apparatus and method for document synchronization

A computer readable storage medium, comprising executable instructions to:

• accept a selection of a destination document on a client device;
• convert the destination document into a destination document tree hierarchy;
• flatten the destination document tree hierarchy into a destination document hash table, comprising a set of destination document keys and a set of destination document values;
• retrieve the set of destination document keys from the client device;
• retrieve a source document, wherein the source document is a second version of the destination document, from a server device;
• convert the source document into a source document tree hierarchy;
• flatten the source document tree hierarchy into a source document hash table, comprising a set of source document key-value pairs;
• identify a source document key-value pair, comprising a key and a value, wherein the key is not in the set of destination document keys;
• add the source document key-value to a changelist;
• identify a destination document key, wherein the destination document key is not a key in a key-value pair in the set of source document key-value pairs;
• add the destination document key to the changelist;
• and
• send the changelist to the client device.