| 摘要 |
A network search server for providing a secure document search function, a search method thereof, an image forming device and a network security system for providing the function, and a recording medium thereof are provided to search scanned document data easily by storing the scanned document data in a database and searching the scanned document data with a keyword. A communicator(110) communicates with at least one image forming device through the network. An OCR(Optical Character Recognition) processor(120) extracts text from image data by performing OCR processing for the image data received from the image forming device. An indexer(130) generates/stores an index file for at least one of a text extraction time, image forming device user information, and a keyword. A search engine(150) searches the index file matched with at least one of the text extraction time, the image forming device user information, and the keyword from the stored index files when at least one of the text extraction time, the image forming device user information, and the keyword is received. The indexer maps/stores the extracted text and the generated index file.
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