1. An image formation system comprising: a plurality of image formation apparatuses, and at least one information processor, connected to one another, said information processor including a performance information storage unit configured to store, for each type of document, performance information related to processing rate of each said image formation apparatus to process a document, an input unit functioning as a pointing device, a display unit configured to display apparatus icons, each apparatus icon corresponding to an image formation apparatus from the plurality of image formation apparatuses, and a document icon corresponding to a document, a document selection unit configured to select a document, of which direct print processing by any one of said image formation apparatuses is to be requested, by selecting the document icon corresponding to the document through said input unit, a detection unit configured to detect a type of document selected by said document selection unit, a performance information acquisition unit configured to obtain performance information related to processing rate of each image formation apparatus stored in said performance information storage unit for the type of document detected by said detection unit, and a notification unit configured to provide a first notification to a user when the document icon is selected by said document selection unit to select the document, of the performance information of each image formation apparatus, for the type of the selected document, by changing said displayed apparatus icons in a respective manner corresponding to the performance information of each image formation apparatus for the type of the selected document.