A DocumentMerger can merge changes from a modified "Device" Document to the assigned original "Office" Document.
Merge is useful when an OfficeDocument is converted to a "Device" Document format, and the "Device" Document version is modified. Those changes can be merged back into the original OfficeDocument with the merger. The merger is capable of doing this even if the "Device" format is lossy in comparison to the OfficeDocument format.
The ConverterCapabilities object is what the DocumentMerger utilizes to know how the "Office" Document tags are supported in the "Device" format.
The DocumentMerger object is created by a the DocumentMergerFactory {@link org.openoffice.xmerge.DocumentMergerFactory#createDocumentMerger createDocumenMerger} method. When it is constructed, the"Original Office" Document object is passed in to be used as input.
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