[{"data":1,"prerenderedAt":244},["ShallowReactive",2],{"guide:\u002Fguides\u002Fremove-exif-location-before-sharing":3,"guides:list":175},{"id":4,"title":5,"body":6,"category":153,"description":154,"extension":155,"faq":156,"meta":166,"navigation":167,"path":168,"seo":169,"stem":170,"toolSlugs":171,"updated":173,"__hash__":174},"guides\u002Fguides\u002Fremove-exif-location-before-sharing.md","发照片前先清 EXIF：你的位置信息可能就藏在原图里",{"type":7,"value":8,"toc":144},"minimark",[9,13,17,20,23,27,30,89,92,96,105,108,112,115,118,121,125,128,141],[10,11,12],"p",{},"把闲置挂上二手平台前拍了张实拍图，孩子拿了奖状拍照发进班级群，看房回来把几张开间照发给家人——这些动作发出去的都是同一类文件：手机直出的原图。而原图里装的不只画面，相机还随手附了一份「随拍清单」：什么时候拍的、用什么机型、在哪儿拍的。这份清单叫 EXIF，收图的人只要想看，都看得到。",[14,15,16],"h2",{"id":16},"一张原图能暴露什么",[10,18,19],{},"EXIF 是相机在按下快门时写进照片文件的元数据。一张手机直出图的常见字段大致分三层：拍摄参数——光圈、快门、ISO、焦距；设备信息——厂商、机型、镜头型号，个别相机还会写入作者名，那本是摄影师的版权字段，放进隐私语境就是署名痕迹；以及时间与位置——拍摄时间，加上开着定位服务时的 GPS 经纬度与海拔。",[10,21,22],{},"前两层顶多算信息外泄，第三层才是真正的定位风险。手机 GPS 的实际精度常在数米到十几米之间：不是「大概在城东」，而是「这栋楼的这一侧」。居家照、校门口照、每周固定去的球场照，只要带坐标，拍点连起来就是一张作息与住址的拼图。二手场景更直接：实拍图里的坐标，等于把你取货发货的常驻位置一并报了出去。",[14,24,26],{"id":25},"哪些渠道会清哪些不会","哪些渠道会清、哪些不会",[10,28,29],{},"多数日常发送其实在替你清：社交平台客户端发压缩图时经过重新编码，EXIF 通常所剩无几。麻烦出在例外，而例外偏偏集中在信息量最大的「原图」上。一张表看清：",[31,32,33,46],"table",{},[34,35,36],"thead",{},[37,38,39,43],"tr",{},[40,41,42],"th",{},"发送方式",[40,44,45],{},"EXIF 去向",[47,48,49,58,66,73,81],"tbody",{},[37,50,51,55],{},[52,53,54],"td",{},"社交平台发压缩图",[52,56,57],{},"重新编码，通常大部分被剥离",[37,59,60,63],{},[52,61,62],{},"聊天勾选「发送原图」",[52,64,65],{},"原文件直传，完整保留",[37,67,68,71],{},[52,69,70],{},"邮件附件",[52,72,65],{},[37,74,75,78],{},[52,76,77],{},"网盘分享链接",[52,79,80],{},"原文件，完整保留",[37,82,83,86],{},[52,84,85],{},"论坛 \u002F 社区投稿",[52,87,88],{},"视平台而定，常完整保留",[10,90,91],{},"规律一句话：图片只要被压缩转码，元数据多半被顺手丢弃；文件本体原样抵达对方，EXIF 就原样抵达。平台怎么处理是黑箱、还会变，指望它把关不如自己动手——渠道不可控时，发前自清是最稳的一档。",[14,93,95],{"id":94},"查看先看看自己的照片带了多少","查看：先看看自己的照片带了多少",[10,97,98,99,104],{},"在",[100,101,103],"a",{"href":102},"\u002Ftools\u002Fimage\u002Fexif","EXIF 查看清除","工具页，把照片拖进顶部投放区（或点击选择）。解析完成后文件信息与原图预览最先出现，有拍摄数据的话，「拍摄信息」卡片会列出机型、镜头、光圈快门、拍摄时间这些高频字段。",[10,106,107],{},"重点盯红色卡片：照片带 GPS 定位时，页面会用红色警告单独列出纬度、经度、海拔——它一出现，这张图发出去就等于把拍摄点一起发了出去。想看得更细，展开「全部元数据」逐组核对（EXIF 之外，XMP、IPTC 等块也在其中），或点「复制 JSON」把整份元数据留档。工具还有个值得称道的细节：个别文件解析出错时，它不武断地报「图片干净」，而是明说无法确认、建议重新导出后再分享——拿不准的结论按有风险处理，这对隐私工具是对的态度。",[14,109,111],{"id":110},"清除一键剥离再发出","清除：一键剥离再发出",[10,113,114],{},"确认要清，点「下载清除后副本」：按字节把 EXIF、XMP、IPTC 等元数据段从文件里剥掉，像素一个不动、不经重新编码，画质零损失，ICC 色彩配置原样保留；得到的副本文件名带 -clean 后缀，原图分毫未改。JPEG、PNG、WebP 三种格式支持这种无损清除。",[10,116,117],{},"两个细节提前知道。个别竖拍照片靠 EXIF 方向标记摆正画面，剥离后少数老看图软件可能显示横躺（浏览器与主流系统不受影响），介意就走转换路线。页面下方的「格式与尺寸转换」走重新编码，导出文件天然不含任何元数据，等于「清除 + 转格式」一步做完：选定 JPG \u002F PNG \u002F WebP，锁定比例改宽度，拖质量滑杆，结果区能预览、能对照与原文件的体积变化，确认后下载。顺手把「图太大不好发」也解决了——压到 1080 宽、转成 WebP，瘦身脱敏一次完成。",[10,119,120],{},"还有一层理由让这套动作适合放在浏览器里：查 EXIF 的诉求本身就是隐私敏感的——你关心一张照片泄露了什么，说明它对你重要。照片在本机解析、剥离、导出，全程没有网络传输，「查隐私的工具先收走照片」这种悖论在这里不存在。",[14,122,124],{"id":123},"养成习惯发图前三步","养成习惯：发图前三步",[10,126,127],{},"把全文收拢成一个可以长期执行的动作，发图前过一遍，十几秒：",[129,130,131,135,138],"ol",{},[132,133,134],"li",{},"想渠道：发压缩图走社交平台，风险低；要发原图、邮件、网盘，进下一步。",[132,136,137],{},"查一眼：照片拖进工具页，看有没有红色 GPS 卡片；确实干净的，页面也会明说「未检测到 EXIF 等元数据，这张图片可以放心分享」。",[132,139,140],{},"清了再发：有疑虑就下载清除后副本，拿干净文件去发；顺路要转格式、缩尺寸的，用转换一并出图。",[10,142,143],{},"第三步多花的几秒，换来的是「无论走哪条渠道都不多给信息」的确定。解析、清除、转换全在本机完成，这个习惯不需要注册与安装，收藏一个页面就够。",{"title":145,"searchDepth":146,"depth":146,"links":147},"",2,[148,149,150,151,152],{"id":16,"depth":146,"text":16},{"id":25,"depth":146,"text":26},{"id":94,"depth":146,"text":95},{"id":110,"depth":146,"text":111},{"id":123,"depth":146,"text":124},"image","手机原图自带拍摄时间、机型、GPS 坐标等 EXIF 元数据。讲清哪些信息会泄露、哪些平台会清除哪些不会，以及发图前用浏览器本地工具一键查看并清除 EXIF 的完整步骤。","md",[157,160,163],{"q":158,"a":159},"EXIF 里到底有什么？","拍摄时间、设备型号、镜头参数、快门光圈 ISO，开定位时还有 GPS 经纬度坐标——精确到能在地图上标出拍摄点。",{"q":161,"a":162},"微信\u002F微博会自动清除 EXIF 吗？","主流社交平台发送压缩图时通常会剥离大部分 EXIF，但不能一概而论：发「原图」、发邮件、传网盘、给论坛投稿都可能原样带出。不可控的渠道，自己先清最稳妥。",{"q":164,"a":165},"清除 EXIF 会损画质吗？","不会。清除只删元数据，不动像素；本站工具顺带支持转 JPG\u002FPNG\u002FWebP 与调整尺寸，有需要可一并做。",{},true,"\u002Fguides\u002Fremove-exif-location-before-sharing",{"title":5,"description":154},"guides\u002Fremove-exif-location-before-sharing",[172],"image\u002Fexif","2026-09-13","3wMRVUQBiSlLtqSb8LMHGRhhCpijjWfiFEzNAtOf6AY",[176,183,190,197,206,214,220,222,230,237],{"path":177,"title":178,"description":179,"category":153,"toolSlugs":180,"updated":182},"\u002Fguides\u002Fbatch-watermark-images","批量给图片加水印防搬运：文字水印与 Logo 水印实操","一次给几十张图片加文字或 Logo 水印：九宫格位置与平铺铺满怎么选、透明度旋转怎么调才既防搬运又不毁图，水印大小随图片宽度等比缩放的原理与批量导出步骤。",[181],"image\u002Fwatermark","2026-09-10",{"path":184,"title":185,"description":186,"category":153,"toolSlugs":187,"updated":182},"\u002Fguides\u002Fcompress-image-to-200kb","图片压到 200KB 以内的三种方法：按质量压、按目标体积压、转格式","上传证件、填报名表总卡在体积限制？三种思路把图片压到 200KB 以内：按质量逐档试、直接指定目标体积自动逼近、换 WebP\u002FJPG 格式再压，附批量操作与画质权衡建议。",[188,189],"image\u002Fcompress","image\u002Fconvert",{"path":191,"title":192,"description":193,"category":194,"toolSlugs":195,"updated":173},"\u002Fguides\u002Fmake-qrcode-wifi-logo","二维码怎么做：网址码、WiFi 码、带中心 Logo 的定制码","三种最常见的二维码制作：网页链接码、连 WiFi 免输密码的 WiFi 码、带中心 Logo 的品牌码；配色与容错等级怎么配才既好看又扫得出，PNG\u002FSVG 导出与反向解析一次讲清。","developer",[196],"developer\u002Fqrcode",{"path":198,"title":199,"description":200,"category":201,"toolSlugs":202,"updated":205},"\u002Fguides\u002Fmd5-vs-sha256-file-checksum","MD5 和 SHA-256 怎么选：文件校验入门","下载文件怕被篡改、传完文件怕损坏？讲清 MD5 与 SHA-256 的差异与各自适用场景，文本与文件摘要怎么算、校验值怎么比对，以及分块流式处理大文件的实操步骤。","general",[203,204],"developer\u002Fmd5","security\u002Ffile-hash","2026-09-15",{"path":207,"title":208,"description":209,"category":210,"toolSlugs":211,"updated":213},"\u002Fguides\u002Fmerge-split-pdf-scanned-docs","PDF 合并与拆分实操：把零散扫描件整理成一份干净文件","扫描件东一页西一页？手把手把多个 PDF 合并成一份、按页码范围拆分提取、删掉空白页与误扫页再导出，全程浏览器本地处理，合同与证件扫描件不出本机。","document",[212],"document\u002Fpdf-process","2026-09-11",{"path":215,"title":216,"description":217,"category":210,"toolSlugs":218,"updated":213},"\u002Fguides\u002Fprint-copybook-tianzige","田字格字帖打印指南：从生字表到 A4 成品","在家给孩子打印练字帖：田字格\u002F米字格\u002F回宫格怎么选、拼音标注与描红模式怎么配、内容输什么（生字、姓名、古诗），A4 版式直接打印或另存 PDF 的完整流程。",[219],"document\u002Fcopybook",{"path":168,"title":5,"description":154,"category":153,"toolSlugs":221,"updated":173},[172],{"path":223,"title":224,"description":225,"category":153,"toolSlugs":226,"updated":229},"\u002Fguides\u002Fresize-crop-image-for-platforms","一张图适配所有平台：改尺寸与裁剪比例速查","头图要 16:9、封面要 1:1、简历照要 4:3？分清「改尺寸」与「裁剪」两件事：等比缩放保画质，按比例裁剪定构图，附常用平台比例速查表与批量处理流程。",[227,228],"image\u002Fresize","image\u002Fcrop","2026-09-17",{"path":231,"title":232,"description":233,"category":234,"toolSlugs":235,"updated":205},"\u002Fguides\u002Ftrim-video-lossless-vs-reencode","视频怎么裁出一段：无损截取与重编码怎么选","只想留视频里 30 秒精华？讲清无损截取（秒级出片、不改分辨率帧率）与重编码裁剪的原理差异、各自的画质与兼容性代价，以及双端滑杆精确选段到帧级的操作步骤。","audio-video",[236],"audio-video\u002Fvideo-trim",{"path":238,"title":239,"description":240,"category":194,"toolSlugs":241,"updated":243},"\u002Fguides\u002Fwhat-is-unix-timestamp","Unix 时间戳是什么：秒与毫秒怎么区分、怎么换算","一文讲清 Unix 时间戳：10 位秒级与 13 位毫秒级的自动判断规则、换算差 8 小时的三种常见原因、负数与超限值的边界，附三个真实排查案例与在线换算步骤。",[242],"developer\u002Ftimestamp","2026-09-08",1791906054416]