[{"data":1,"prerenderedAt":127},["ShallowReactive",2],{"faq-doc-workflow-pdf-to-image-format-clarity":3},{"id":4,"title":5,"answer":6,"body":7,"canonical":103,"category":104,"description":105,"draft":106,"extension":107,"faqRefs":108,"h1":5,"meta":112,"navigation":113,"path":114,"published":113,"question":5,"relatedTools":115,"robots":119,"seo":120,"slug":122,"stem":123,"summary":124,"updatedAt":125,"__hash__":126},"faqs\u002Ffaqs\u002Fpdf-to-image-format-clarity.md","PDF 转图片选 JPG 还是 PNG？","普通资料页、照片较多的 PDF 优先选 JPG，文件更小；截图、表格、小字、线条和盖章页更适合选 PNG，边缘更稳。清晰度可先从 2400 px 试起，再按预览效果调高或调低。",{"type":8,"value":9,"toc":93},"minimark",[10,14,18,21,24,46,49,67,70,87,90],[11,12,13],"h2",{"id":13},"使用场景",[15,16,17],"p",{},"PDF 转图片常见在资料上传、合同预览、表格分享、证书归档和打印前检查。选错格式时，可能出现两类问题：JPG 体积小但小字边缘发虚，PNG 边缘更清楚但文件更大。",[15,19,20],{},"如果上传系统明确要求 JPG 或 PNG，先按系统要求来；如果没有明确限制，再根据内容类型选择。",[11,22,23],{"id":23},"推荐选择顺序",[25,26,27,31,34,37,40,43],"ol",{},[28,29,30],"li",{},"先看 PDF 内容：照片、宣传页、普通资料页较多时，优先 JPG。",[28,32,33],{},"如果页面以小字、表格、截图、线条图、盖章或签名为主，优先 PNG。",[28,35,36],{},"不确定时，先各导出一页对比，用 100% 预览看文字边缘和表格线。",[28,38,39],{},"清晰度先从 2400 px 试起；小字看不清再调高，文件太大再适当调低。",[28,41,42],{},"同一份 PDF 尽量统一格式，避免前后页面清晰度和体积差异过大。",[28,44,45],{},"导出后抽查首页、文字最密的一页和图表最多的一页。",[11,47,48],{"id":48},"重点看哪里",[50,51,52,55,58,61,64],"ul",{},[28,53,54],{},"JPG 适合照片和普通阅读材料，优点是体积小，缺点是文字边缘可能被压得发虚。",[28,56,57],{},"PNG 适合截图、表格、证书、盖章页和线条图，边缘更稳，但文件通常更大。",[28,59,60],{},"清晰度太低会让小字和表格线糊掉；清晰度太高会让文件明显变大，但不一定带来可见提升。",[28,62,63],{},"如果目标是打印，除了清晰度，还要检查页面比例、边距和打印预览是否被缩放。",[28,65,66],{},"如果目标是上传，除了格式，还要检查单张图片是否超过系统体积限制。",[11,68,69],{"id":69},"常见错误与修正",[50,71,72,75,78,81,84],{},[28,73,74],{},"只为了体积小选 JPG，结果表格线发虚。修正：改用 PNG，或提高导出清晰度后再检查。",[28,76,77],{},"看到文件大就直接降到很低清晰度。修正：先抽查小字页，确认还能读清再降低。",[28,79,80],{},"每页使用不同格式。修正：同一份资料尽量统一输出规则，方便查看和上传。",[28,82,83],{},"只看缩略图不看原图。修正：用 100% 预览检查文字、印章、表格线和二维码。",[28,85,86],{},"转完再反复压缩。修正：优先重新导出合适清晰度，不要在已经模糊的图片上继续压缩。",[11,88,89],{"id":89},"进阶建议",[15,91,92],{},"如果同一份 PDF 同时要上传和打印，可以分别导出两个版本：上传版控制体积，打印版优先清晰。文件名里标清用途，例如“上传版”和“打印版”，后续使用时不容易拿错。",{"title":94,"searchDepth":95,"depth":95,"links":96},"",3,[97,99,100,101,102],{"id":13,"depth":98,"text":13},2,{"id":23,"depth":98,"text":23},{"id":48,"depth":98,"text":48},{"id":69,"depth":98,"text":69},{"id":89,"depth":98,"text":89},null,"workflow","说明 PDF 转图片时 JPG、PNG 和清晰度怎么选，帮助兼顾文字清楚、表格边缘稳定和文件体积。",false,"md",[109,110,111],"jpg-png-file-size-difference","jpg-png-image-print","image-to-pdf-order-margin",{},true,"\u002Ffaqs\u002Fpdf-to-image-format-clarity",[116,117,118],"pdf-to-image","image-to-pdf","format-convert","index,follow",{"title":5,"description":121,"robots":119},"PDF 转图片时 JPG 和 PNG 的区别、适用场景与清晰度设置建议，适合资料上传、表格截图、打印预览和归档转换。","pdf-to-image-format-clarity","faqs\u002Fpdf-to-image-format-clarity","先看 PDF 内容。照片多、只需阅读时选 JPG；小字、表格、截图和线条多时选 PNG，再用预览检查清晰度。","2026-06-18","f8Dl8YYC3oolP5uu1TljoqdfN5MW-DFjUTV_Y7FXIMo",1781797970357]