Embedding user specific information into user specific information input area of document

An operation method of an image forming apparatus, the operation method comprising:

• displaying a preview screen of a document in a user interface device of an image forming apparatus;
• performing an embedding process of embedding user-specific information into a plurality of user-specific information input areas included in the document;
• displaying state information of the plurality of user-specific information input areas on the preview screen in synchronization with a progress of the embedding process;
• and based on completion of the embedding process, performing an image forming job with respect to the document in which the user-specific information is input, wherein the state information of the plurality of user-specific information input areas includes at least one of a numeric value corresponding to a total number of the plurality of user-specific information input areas, a numeric value corresponding to a number of the user-specific information input areas selected by the user, or a numeric value corresponding to a number of user-specific information input areas into which the user-specific information is embedded.

A non-transitory computer-readable storage medium storing instructions executable by a processor, the non-transitory computer-readable storage medium comprising:

• instructions to display a preview screen of a document in a user interface device of an image forming apparatus;
• instructions to perform an embedding process to embed user-specific information into a plurality of user-specific information input areas included in the document;
• instructions to display state information of the plurality of user-specific information input areas on the preview screen in synchronization with a progress of the embedding process;
• and
• instructions to perform an image forming job with respect to the document in which the user-specific information is input based on completion of the embedding process,
• wherein the state information of the plurality of user-specific information input areas includes at least one of a numeric value corresponding to a total number of the plurality of user-specific information input areas, a numeric value corresponding to a number of the user-specific information input areas selected by the user, or a numeric value corresponding to a number of user-specific information input areas into which the user-specific information is embedded.