3. The information processing apparatus according to claim 2 , wherein in the case of recognition of the type of the first document, the recognition unit tries to recognize the type of the first document by changing the image recognition method to another until recognition of the type of the first document becomes successful.
3. The information processing apparatus according to claim 2 , wherein in the case of recognition of the type of the first document, the recognition unit tries to recognize the type of the first document by changing the image recognition method to another until recognition of the type of the first document becomes successful. 6. The information processing apparatus according to claim 3 , wherein the plurality of documents include a document of a first type for which a number of pages is not specified and a document of a second type, and in a case where an order is specified such that the document of the first type is recognized and then the document of the second type is recognized, the recognition unit recognizes the type of a certain document using a first image recognition method corresponding to the first type and a second image recognition method corresponding to the second type, recognizes the type of a subsequent document using the first image recognition method and the second image recognition method in a case where recognition of the type of the certain document has been successful using the first image recognition method, and recognizes the type of the subsequent document using the second image recognition method in a case where recognition of the type of the certain document has been successful using the second image recognition method.