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文档存档扫描分辨率300dpi足够，若需扫描含小字体的合同、发票或用于放大印刷则需600dpi及以上；1200dpi主要用于照片/老底片翻拍

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Unverified扫描普通文档办公用途，光学分辨率300dpi足够；扫描含小字或需存档的证件、票据选600dpi；扫描照片或需二次放大的图纸才需要1200dpi以上91% similar Unverified文档存档扫描选300dpi足够，票据/合同归档用200dpi即可保证清晰度；仅当扫描照片或需放大细节时才需600dpi以上，盲目追求高分辨率会显著拖慢扫描速度并增大文件体积89% similar Unverified文档存档扫描选300-600 DPI即可，300 DPI满足OCR识别需求，600 DPI适合含小字号或表格的合同；照片/艺术品数字化才需要1200 DPI以上光学分辨率，插值分辨率数值无实际意义85% similar Unverified需扫描并OCR识别文字文档时选择扫描分辨率≥600dpi的机型，300dpi仅够普通存档，扫描照片建议≥1200dpi84% similar Unverified扫描普通文档文字识别（OCR）用途，光学分辨率300DPI足够；扫描照片或需保留细节的图纸建议选600DPI以上，标称的插值分辨率（如1050DPI）不代表真实清晰度83% similar

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