An A4 blueprint is a copy of a document or image made on a standard A4 sheet (210×297 mm) using the photocopying method, most often with a photocopier or printer. Main features: Color: can be black and white or colored. Quality: Depends on scanner/printer resolution, typically 300-600 dpi. Purpose: used to duplicate originals, provide copies to institutions, store documents, etc. Material: ordinary office paper with a density of 80 g/m² (it can be heavier, if necessary). Where it is used: Educational Institutions Offices Government agencies (when submitting copies of documents) Archives and personal records management

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