[{"data":1,"prerenderedAt":124},["ShallowReactive",2],{"faq-doc-workflow-how-to-prepare-printable-photo":3},{"id":4,"title":5,"answer":6,"body":7,"canonical":100,"category":101,"description":102,"draft":103,"extension":104,"faqRefs":105,"h1":5,"meta":108,"navigation":109,"path":110,"published":109,"question":5,"relatedTools":111,"robots":116,"seo":117,"slug":119,"stem":120,"summary":121,"updatedAt":122,"__hash__":123},"faqs\u002Ffaqs\u002Fhow-to-prepare-printable-photo.md","打印前应该先改 DPI 还是先改尺寸？","先确认要打印的实际尺寸和图片像素是否够用，再设置 DPI。DPI 主要影响打印尺寸说明，不能把像素不足的图片变清楚。",{"type":8,"value":9,"toc":90},"minimark",[10,14,18,21,24,46,49,67,70,84,87],[11,12,13],"h2",{"id":13},"使用场景",[15,16,17],"p",{},"证件照、活动照片、家庭照片、资料页图片和 A4 排版打印，都可能同时涉及“尺寸”和“DPI”。处理顺序错了，容易出现预览正常、打印出来却变大、变小或不清楚的问题。",[15,19,20],{},"打印前的核心是：先让图片本身适合目标纸面，再让打印设置按这个目标输出。",[11,22,23],{"id":23},"推荐处理顺序",[25,26,27,31,34,37,40,43],"ol",{},[28,29,30],"li",{},"先确认最终打印用途：单张照片、证件照排版、A4 页面还是照片纸。",[28,32,33],{},"再确认纸面尺寸和比例，避免图片被裁掉或拉伸。",[28,35,36],{},"检查像素宽高是否够用，人脸、文字和边缘是否清楚。",[28,38,39],{},"像素或比例不合适时，先处理图片尺寸和构图。",[28,41,42],{},"图片本身确认后，再按打印要求设置 DPI。",[28,44,45],{},"最后检查排版、边距、裁切线和打印预览。",[11,47,48],{"id":48},"重点看哪里",[50,51,52,55,58,61,64],"ul",{},[28,53,54],{},"DPI 不能补足像素不足，原图太小仍然可能打印发糊。",[28,56,57],{},"打印尺寸和图片比例要一致，否则会被裁切、留白或拉伸。",[28,59,60],{},"证件照要先看单张是否合格，再做整页排版。",[28,62,63],{},"打印软件里的“适应页面”“缩放到纸张大小”可能改变实际尺寸。",[28,65,66],{},"交给打印店前，文件名、版本和纸张规格要写清楚，避免拿错版本。",[11,68,69],{"id":69},"常见错误与修正",[50,71,72,75,78,81],{},[28,73,74],{},"只改 DPI，期望图片变清楚。修正：先确认像素和原图清晰度。",[28,76,77],{},"排版后才发现单张照片不合格。修正：先修单张，再排整页。",[28,79,80],{},"打印时自动适应页面。修正：打印前看预览，必要时关闭自动缩放。",[28,82,83],{},"横竖方向弄反。修正：导出前确认宽高顺序和纸张方向。",[11,85,86],{"id":86},"进阶建议",[15,88,89],{},"建议保留“上传版”和“打印版”两个文件。上传版重点看像素、体积和格式；打印版重点看纸面尺寸、DPI、边距和预览，避免一个文件同时承担两种用途。",{"title":91,"searchDepth":92,"depth":92,"links":93},"",3,[94,96,97,98,99],{"id":13,"depth":95,"text":13},2,{"id":23,"depth":95,"text":23},{"id":48,"depth":95,"text":48},{"id":69,"depth":95,"text":69},{"id":86,"depth":95,"text":86},null,"workflow","打印前应先确认成品尺寸、像素宽高和构图，再设置 DPI、排版、边距和打印预览，避免输出尺寸或清晰度不对。",false,"md",[106,107],"change-dpi-vs-modify-resolution","a4-photo-sheet-print-check",{},true,"\u002Ffaqs\u002Fhow-to-prepare-printable-photo",[112,113,114,115],"modify-pixel","modify-resolution","change-dpi","photo-sheet","index,follow",{"title":5,"description":118,"robots":116},"打印前先改尺寸还是 DPI：先确认纸面尺寸和像素宽高，再设置 DPI、排版和边距，最后检查打印预览。","how-to-prepare-printable-photo","faqs\u002Fhow-to-prepare-printable-photo","打印前先定纸面尺寸和像素，再设置 DPI；最后看排版、边距和打印预览是否一致。","2026-06-18","2sIueQztleCXOKUTtAKYaWTT0RUaF-Y8w3SXU03qit0",1781797969276]