[{"data":1,"prerenderedAt":945},["ShallowReactive",2],{"guide-image-compress":3,"related-image-compress":560},{"id":4,"title":5,"body":6,"category":538,"description":539,"extension":540,"keywords":541,"meta":547,"navigation":548,"path":549,"readingTime":550,"relatedTools":551,"seo":555,"stem":556,"type":557,"updatedAt":558,"__hash__":559},"guides\u002Fhelp\u002Fguides\u002Fimage-compress.md","图片压缩使用指南：减小图片文件大小",{"type":7,"value":8,"toc":512},"minimark",[9,13,17,22,26,96,100,104,113,119,133,138,146,150,155,166,171,182,186,189,203,207,210,213,216,221,232,237,248,253,264,268,279,282,287,298,303,314,317,321,326,337,342,353,357,362,373,378,389,393,397,408,413,428,432,437,447,450,477,480,483,509],[10,11,5],"h1",{"id":12},"图片压缩使用指南减小图片文件大小",[14,15,16],"p",{},"图片文件过大是常见问题。无论是网站上传、发送邮件，还是存储到移动设备，过大的图片都会带来不便。本指南将介绍如何使用91AI工具有效压缩图片。",[18,19,21],"h2",{"id":20},"为什么需要压缩图片","为什么需要压缩图片？",[23,24,25],"h3",{"id":25},"常见场景",[27,28,29,48,64,80],"ol",{},[30,31,32,36],"li",{},[33,34,35],"strong",{},"网站上传",[37,38,39,42,45],"ul",{},[30,40,41],{},"限制图片大小",[30,43,44],{},"加快网页加载",[30,46,47],{},"节省服务器空间",[30,49,50,53],{},[33,51,52],{},"邮件发送",[37,54,55,58,61],{},[30,56,57],{},"附件大小限制",[30,59,60],{},"发送速度更快",[30,62,63],{},"节省收件人空间",[30,65,66,69],{},[33,67,68],{},"社交分享",[37,70,71,74,77],{},[30,72,73],{},"平台上传限制",[30,75,76],{},"节省手机流量",[30,78,79],{},"快速上传发布",[30,81,82,85],{},[33,83,84],{},"存储管理",[37,86,87,90,93],{},[30,88,89],{},"减少磁盘占用",[30,91,92],{},"备份速度更快",[30,94,95],{},"便于移动存储",[18,97,99],{"id":98},"使用91ai压缩图片","使用91AI压缩图片",[23,101,103],{"id":102},"第一步上传图片","第一步：上传图片",[14,105,106,107,112],{},"打开 ",[108,109,111],"a",{"href":110},"\u002Ftools\u002Fimg-compress","91AI 图片压缩工具","。",[14,114,115,118],{},[33,116,117],{},"支持格式","：",[37,120,121,124,127,130],{},[30,122,123],{},"JPG \u002F JPEG",[30,125,126],{},"PNG",[30,128,129],{},"BMP",[30,131,132],{},"GIF",[14,134,135,118],{},[33,136,137],{},"文件要求",[37,139,140,143],{},[30,141,142],{},"单张最大20MB",[30,144,145],{},"支持批量上传",[23,147,149],{"id":148},"第二步设置压缩参数","第二步：设置压缩参数",[14,151,152,118],{},[33,153,154],{},"压缩质量",[37,156,157,160,163],{},[30,158,159],{},"范围5-100%",[30,161,162],{},"默认50%（推荐）",[30,164,165],{},"数值越小，压缩率越高",[14,167,168,118],{},[33,169,170],{},"缩放比例",[37,172,173,176,179],{},[30,174,175],{},"范围10-200%",[30,177,178],{},"默认100%（保持原尺寸）",[30,180,181],{},"可按比例缩小图片",[23,183,185],{"id":184},"第三步开始压缩","第三步：开始压缩",[14,187,188],{},"点击\"开始压缩\"按钮，系统会：",[27,190,191,194,197,200],{},[30,192,193],{},"分析图片内容",[30,195,196],{},"应用压缩算法",[30,198,199],{},"优化图片质量",[30,201,202],{},"生成压缩后文件",[23,204,206],{"id":205},"第四步下载图片","第四步：下载图片",[14,208,209],{},"查看压缩前后大小对比，下载压缩后的图片。",[18,211,212],{"id":212},"压缩参数建议",[23,214,215],{"id":215},"按用途设置",[14,217,218,118],{},[33,219,220],{},"网页展示",[37,222,223,226,229],{},[30,224,225],{},"质量：50-70%",[30,227,228],{},"宽度：1200-1920px",[30,230,231],{},"预计减小：70-80%",[14,233,234,118],{},[33,235,236],{},"邮件附件",[37,238,239,242,245],{},[30,240,241],{},"质量：60-80%",[30,243,244],{},"保持原尺寸或适当缩小",[30,246,247],{},"预计减小：50-60%",[14,249,250,118],{},[33,251,252],{},"打印使用",[37,254,255,258,261],{},[30,256,257],{},"质量：80-90%",[30,259,260],{},"尺寸保持原大小",[30,262,263],{},"预计减小：20-30%",[14,265,266,118],{},[33,267,68],{},[37,269,270,273,276],{},[30,271,272],{},"质量：40-60%",[30,274,275],{},"宽度：800-1200px",[30,277,278],{},"预计减小：80-90%",[23,280,281],{"id":281},"格式建议",[14,283,284,118],{},[33,285,286],{},"JPG照片",[37,288,289,292,295],{},[30,290,291],{},"压缩效果最佳",[30,293,294],{},"适合复杂色彩图片",[30,296,297],{},"支持高质量压缩",[14,299,300,118],{},[33,301,302],{},"PNG图片",[37,304,305,308,311],{},[30,306,307],{},"透明背景保留",[30,309,310],{},"适合图标、截图",[30,312,313],{},"压缩率相对较小",[18,315,316],{"id":316},"常见问题",[23,318,320],{"id":319},"q1-压缩后图片模糊","Q1: 压缩后图片模糊？",[14,322,323,118],{},[33,324,325],{},"原因",[37,327,328,331,334],{},[30,329,330],{},"压缩质量设置过低",[30,332,333],{},"原图分辨率本身不高",[30,335,336],{},"多次压缩累积损失",[14,338,339,118],{},[33,340,341],{},"解决",[37,343,344,347,350],{},[30,345,346],{},"提高质量设置（60%以上）",[30,348,349],{},"保持原尺寸不缩放",[30,351,352],{},"避免多次压缩同一图片",[23,354,356],{"id":355},"q2-压缩效果不明显","Q2: 压缩效果不明显？",[14,358,359,118],{},[33,360,361],{},"可能原因",[37,363,364,367,370],{},[30,365,366],{},"图片已经压缩过",[30,368,369],{},"图片本身已经优化",[30,371,372],{},"简单图形难压缩",[14,374,375,118],{},[33,376,377],{},"优化",[37,379,380,383,386],{},[30,381,382],{},"尝试调整缩放比例",[30,384,385],{},"转换为JPG格式",[30,387,388],{},"使用更低质量设置",[23,390,392],{"id":391},"q3-png压缩后还是很大","Q3: PNG压缩后还是很大？",[14,394,395,118],{},[33,396,325],{},[37,398,399,402,405],{},[30,400,401],{},"PNG为无损格式",[30,403,404],{},"保留透明通道",[30,406,407],{},"压缩率有限",[14,409,410,118],{},[33,411,412],{},"建议",[37,414,415,418,421],{},[30,416,417],{},"如需透明背景，保持PNG",[30,419,420],{},"否则转为JPG格式",[30,422,423,424],{},"使用",[108,425,427],{"href":426},"\u002Ftools\u002Fimg-convert","图片格式转换",[23,429,431],{"id":430},"q4-可以批量压缩吗","Q4: 可以批量压缩吗？",[14,433,434,118],{},[33,435,436],{},"回答",[37,438,439,441,444],{},[30,440,145],{},[30,442,443],{},"统一压缩参数",[30,445,446],{},"分别下载压缩后图片",[18,448,449],{"id":449},"相关工具",[37,451,452,459,468],{},[30,453,454,458],{},[33,455,456],{},[108,457,427],{"href":426}," - 转换图片格式",[30,460,461,467],{},[33,462,463],{},[108,464,466],{"href":465},"\u002Ftools\u002Fimg-to-text","图片转文字"," - 提取图片中的文字",[30,469,470,476],{},[33,471,472],{},[108,473,475],{"href":474},"\u002Ftools\u002Fjpg-to-pdf","JPG转PDF"," - 将图片转为PDF",[18,478,479],{"id":479},"总结",[14,481,482],{},"图片压缩是日常常用的功能：",[27,484,485,491,497,503],{},[30,486,487,490],{},[33,488,489],{},"设置参数","：根据用途选择质量和尺寸",[30,492,493,496],{},[33,494,495],{},"预览效果","：对比压缩前后大小",[30,498,499,502],{},[33,500,501],{},"执行压缩","：一键完成优化",[30,504,505,508],{},[33,506,507],{},"检查质量","：确保满足使用需求",[14,510,511],{},"合理压缩图片，平衡文件大小和视觉效果。",{"title":513,"searchDepth":514,"depth":514,"links":515},"",2,[516,520,526,530,536,537],{"id":20,"depth":514,"text":21,"children":517},[518],{"id":25,"depth":519,"text":25},3,{"id":98,"depth":514,"text":99,"children":521},[522,523,524,525],{"id":102,"depth":519,"text":103},{"id":148,"depth":519,"text":149},{"id":184,"depth":519,"text":185},{"id":205,"depth":519,"text":206},{"id":212,"depth":514,"text":212,"children":527},[528,529],{"id":215,"depth":519,"text":215},{"id":281,"depth":519,"text":281},{"id":316,"depth":514,"text":316,"children":531},[532,533,534,535],{"id":319,"depth":519,"text":320},{"id":355,"depth":519,"text":356},{"id":391,"depth":519,"text":392},{"id":430,"depth":519,"text":431},{"id":449,"depth":514,"text":449},{"id":479,"depth":514,"text":479},"image-processing","学习如何压缩JPG、PNG等图片格式，调整压缩质量和尺寸，在保持清晰度的同时减小文件大小。","md",[542,543,544,545,546],"图片压缩","图片优化","JPG压缩","PNG压缩","图片瘦身",{},true,"\u002Fhelp\u002Fguides\u002Fimage-compress",4,[552,553,554],"img-compress","img-convert","jpg-to-pdf",{"title":5,"description":539},"help\u002Fguides\u002Fimage-compress","guide","2026-05-03","7ma4HssrB-4MuWdhEz-IfBDpy8v-D7tQDVHXuggcms4",[561],{"id":4,"title":5,"body":562,"category":538,"description":539,"extension":540,"keywords":941,"meta":942,"navigation":548,"path":549,"readingTime":550,"relatedTools":943,"seo":944,"stem":556,"type":557,"updatedAt":558,"__hash__":559},{"type":7,"value":563,"toc":918},[564,566,568,570,572,622,624,626,630,634,644,648,654,656,660,668,672,680,682,684,694,696,698,700,702,706,714,718,726,730,738,742,750,752,756,764,768,776,778,780,784,792,796,804,806,810,818,822,830,832,836,844,848,858,860,864,872,874,894,896,898,916],[10,565,5],{"id":12},[14,567,16],{},[18,569,21],{"id":20},[23,571,25],{"id":25},[27,573,574,586,598,610],{},[30,575,576,578],{},[33,577,35],{},[37,579,580,582,584],{},[30,581,41],{},[30,583,44],{},[30,585,47],{},[30,587,588,590],{},[33,589,52],{},[37,591,592,594,596],{},[30,593,57],{},[30,595,60],{},[30,597,63],{},[30,599,600,602],{},[33,601,68],{},[37,603,604,606,608],{},[30,605,73],{},[30,607,76],{},[30,609,79],{},[30,611,612,614],{},[33,613,84],{},[37,615,616,618,620],{},[30,617,89],{},[30,619,92],{},[30,621,95],{},[18,623,99],{"id":98},[23,625,103],{"id":102},[14,627,106,628,112],{},[108,629,111],{"href":110},[14,631,632,118],{},[33,633,117],{},[37,635,636,638,640,642],{},[30,637,123],{},[30,639,126],{},[30,641,129],{},[30,643,132],{},[14,645,646,118],{},[33,647,137],{},[37,649,650,652],{},[30,651,142],{},[30,653,145],{},[23,655,149],{"id":148},[14,657,658,118],{},[33,659,154],{},[37,661,662,664,666],{},[30,663,159],{},[30,665,162],{},[30,667,165],{},[14,669,670,118],{},[33,671,170],{},[37,673,674,676,678],{},[30,675,175],{},[30,677,178],{},[30,679,181],{},[23,681,185],{"id":184},[14,683,188],{},[27,685,686,688,690,692],{},[30,687,193],{},[30,689,196],{},[30,691,199],{},[30,693,202],{},[23,695,206],{"id":205},[14,697,209],{},[18,699,212],{"id":212},[23,701,215],{"id":215},[14,703,704,118],{},[33,705,220],{},[37,707,708,710,712],{},[30,709,225],{},[30,711,228],{},[30,713,231],{},[14,715,716,118],{},[33,717,236],{},[37,719,720,722,724],{},[30,721,241],{},[30,723,244],{},[30,725,247],{},[14,727,728,118],{},[33,729,252],{},[37,731,732,734,736],{},[30,733,257],{},[30,735,260],{},[30,737,263],{},[14,739,740,118],{},[33,741,68],{},[37,743,744,746,748],{},[30,745,272],{},[30,747,275],{},[30,749,278],{},[23,751,281],{"id":281},[14,753,754,118],{},[33,755,286],{},[37,757,758,760,762],{},[30,759,291],{},[30,761,294],{},[30,763,297],{},[14,765,766,118],{},[33,767,302],{},[37,769,770,772,774],{},[30,771,307],{},[30,773,310],{},[30,775,313],{},[18,777,316],{"id":316},[23,779,320],{"id":319},[14,781,782,118],{},[33,783,325],{},[37,785,786,788,790],{},[30,787,330],{},[30,789,333],{},[30,791,336],{},[14,793,794,118],{},[33,795,341],{},[37,797,798,800,802],{},[30,799,346],{},[30,801,349],{},[30,803,352],{},[23,805,356],{"id":355},[14,807,808,118],{},[33,809,361],{},[37,811,812,814,816],{},[30,813,366],{},[30,815,369],{},[30,817,372],{},[14,819,820,118],{},[33,821,377],{},[37,823,824,826,828],{},[30,825,382],{},[30,827,385],{},[30,829,388],{},[23,831,392],{"id":391},[14,833,834,118],{},[33,835,325],{},[37,837,838,840,842],{},[30,839,401],{},[30,841,404],{},[30,843,407],{},[14,845,846,118],{},[33,847,412],{},[37,849,850,852,854],{},[30,851,417],{},[30,853,420],{},[30,855,423,856],{},[108,857,427],{"href":426},[23,859,431],{"id":430},[14,861,862,118],{},[33,863,436],{},[37,865,866,868,870],{},[30,867,145],{},[30,869,443],{},[30,871,446],{},[18,873,449],{"id":449},[37,875,876,882,888],{},[30,877,878,458],{},[33,879,880],{},[108,881,427],{"href":426},[30,883,884,467],{},[33,885,886],{},[108,887,466],{"href":465},[30,889,890,476],{},[33,891,892],{},[108,893,475],{"href":474},[18,895,479],{"id":479},[14,897,482],{},[27,899,900,904,908,912],{},[30,901,902,490],{},[33,903,489],{},[30,905,906,496],{},[33,907,495],{},[30,909,910,502],{},[33,911,501],{},[30,913,914,508],{},[33,915,507],{},[14,917,511],{},{"title":513,"searchDepth":514,"depth":514,"links":919},[920,923,929,933,939,940],{"id":20,"depth":514,"text":21,"children":921},[922],{"id":25,"depth":519,"text":25},{"id":98,"depth":514,"text":99,"children":924},[925,926,927,928],{"id":102,"depth":519,"text":103},{"id":148,"depth":519,"text":149},{"id":184,"depth":519,"text":185},{"id":205,"depth":519,"text":206},{"id":212,"depth":514,"text":212,"children":930},[931,932],{"id":215,"depth":519,"text":215},{"id":281,"depth":519,"text":281},{"id":316,"depth":514,"text":316,"children":934},[935,936,937,938],{"id":319,"depth":519,"text":320},{"id":355,"depth":519,"text":356},{"id":391,"depth":519,"text":392},{"id":430,"depth":519,"text":431},{"id":449,"depth":514,"text":449},{"id":479,"depth":514,"text":479},[542,543,544,545,546],{},[552,553,554],{"title":5,"description":539},1777868330411]