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手机浏览器就是扫描仪,试卷拍完直接是 PDF

  • 2026-10-21 06:45:34
手机浏览器就是扫描仪,试卷拍完直接是 PDF

我家娃的试卷,以前是这么处理的:拍照、存相册、再一张张挑出来发微信,想打印的时候还得翻半天。后来干脆自己写了个网页,现在拍完直接就是 PDF。

做这个的起点其实就是拍试卷。孩子作业、单元卷、错题,拍完总得整理成一份能打印、能发老师的东西,相册里一堆图翻起来太麻烦。所以这个工具最早做的不是"多高级的扫描",就是拍完直接出 PDF 这一件事。

访问地址先放这儿:https://wxaiway.com/any2pdf/

一、拍试卷:拍完就是 PDF,不用再翻相册

打开「拍照扫描」,直接唤起摄像头。端稳手机,画面稳定就自动拍一张,翻到下一页接着拍,一张卷子拍完不用一直按快门。

拍完最直观的是自动找纸:斜着拍的卷子,它识别四个角,透视展开成正正的文档。角不满意可以手动拖。手挡的光、桌面反光,一键去阴影,白底净化得挺干净。拍歪一两度,它按文字行走向自动纠偏。

预设里有"黑白文字",扫试卷背景更干净,铅笔字、印刷字都清楚;有红笔批改的卷子切"彩色原稿",红色批注保得住。亮度对比度能逐页调,也能整批统一增强。

拍完直接生成 PDF,不用先存相册再挑图。这一步省下来的时间,比想象中多。

二、导出前,它替你把问题页挑出来

拍试卷最怕拍的时候没注意,打完才发现有一页糊了、有一页手指挡住了角。

导出前有个问题页检查列表,自动过一遍:偏暗、过曝、局部反光、边缘疑似手指遮挡、清晰度低、疑似空白页、疑似和第 N 页重复、四角识别置信度低。每个问题标到具体页码,点开能看原图/增强结果对比,替换、重拍、删除都在这一步搞定。确认没问题才让导出。

这个功能是连拍一套卷子时踩过坑才加的:翻太快,同一页拍了两遍、还混进一张桌面,导出后才发现。

三、拍书、拍作业,跨页也能拆

除了试卷,用得多的就是拍书和拍作业。

孩子的作业、手抄报、通知单,拍完一样出 PDF,发老师、存档都方便。

四、工具中心:基本都是平时攒下来的需求

首页进「工具中心」,26 个工具分了四类,顶部能搜,常用的可以收藏置顶。这些工具不是凑数堆出来的,基本每一条背后都有一个具体的麻烦:

  • 口算题生成器:按数值范围、进退位规则出题,附答案页——家里有娃之后加的;
  • 字帖生成器:输入汉字或古诗,生成田字格、米字格描红字帖;
  • 作业纸生成器:横线纸、方格纸、四线格、作文纸、错题纸;
  • 错题本生成器:题目截图 + 知识点 + 解答区 + 复盘区,自动排成 A4;
  • 打卡表 / 计划表:日打卡、周计划、月计划、空白课程表;
  • 图片批量压缩 / 改尺寸:批量调像素、格式和目标大小,顺手移除照片里的拍摄地点这些隐私元数据;
  • 图片隐私打码
    :人脸、车牌、聊天内容加不可逆马赛克,不是盖一层,是真抹掉;
  • 票据/发票报销拼版:一堆发票和付款截图批量整理,填金额用途,自动排成 A4;
  • PDF 批量压缩:可选清晰度和目标大小,全程本地;
  • PDF 合并 / 拆分 / 页面整理:挑页、调顺序、旋转、删除,保留原始文字和清晰度;
  • 永久涂黑:敏感信息真删除,不是盖黑框;
  • 证件照换底色:本地 AI 抠图、换底色、按标准尺寸排满 A4。

学习类那几个,基本是给孩子用着用着就加上了。PDF 那边还有水印页码、签名盖章、批注填写、拼版打印,双面打印装订的页序都给你算好。

五、身份证复印件,带"防盗用"水印

顺带说一个不是拍试卷、但很多人用得上的:身份证正反面拍两张,选「证件正反面 A4 复印件」,按真实尺寸排——身份证 85.6 × 54 mm,打出来和复印店一致。关键是用途水印:写上"仅用于办理××",红色斜纹平铺满整张复印件,就算流出去也干不了别的。

几个做的时候刻意坚持的细节

  • 草稿自动保存:扫到一半来电话,页面关了回来自动恢复;
  • 输出清晰度三档:标准约 188 DPI / 高清约 240 DPI / 打印约 300 DPI,页面自适应 A4,也支持 A3 / A5 / Letter;
  • 手机上生成的 PDF 直接走系统分享到微信,不用先下载再找文件;

想试的话,先玩这三个

访问地址:https://wxaiway.com/any2pdf/

  1. 手机打开「拍照扫描」,斜着拍一张试卷,看它自动找角、展平、去阴影,拍完直接出 PDF;
  2. 拍一套卷子,导出前看它把糊页、重复页、手指挡角挑出来;
  3. 去工具中心,用口算题生成器出一页题,或者把一份大 PDF 压一下。

我自己家里孩子的试卷、作业,现在基本拍完就存成 PDF,相册清爽多了。你要是也觉得顺手,转给那个总在相册里翻试卷的家长就行;有想要的功能或者用着不顺手的地方,留言说一声——很多功能就是这么加上来的。


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左边写Markdown右边出思维导图,现在新增AI一键整理,3秒搞定。
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  1. CONNECT:[ UseTime:0.000476s ] mysql:host=172.18.0.4;port=3306;dbname=www_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000761s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000347s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000411s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000628s ]
  6. SELECT * FROM `set` [ RunTime:0.000304s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000738s ]
  8. SELECT * FROM `article` WHERE `id` = 525334 LIMIT 1 [ RunTime:0.000355s ]
  9. UPDATE `article` SET `lasttime` = 1792562945 WHERE `id` = 525334 [ RunTime:0.002386s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000335s ]
  11. SELECT * FROM `article` WHERE `id` < 525334 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000363s ]
  12. SELECT * FROM `article` WHERE `id` > 525334 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000450s ]
  13. SELECT * FROM `article` WHERE `id` < 525334 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000516s ]
  14. SELECT * FROM `article` WHERE `id` < 525334 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000546s ]
  15. SELECT * FROM `article` WHERE `id` < 525334 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000686s ]
0.084564s