证件照尺寸修改
一寸/二寸等标准证件照裁剪与换背景色。
关于「证件照尺寸修改」
它属于「图片处理」分类：基于 Canvas 的本地图片编辑，原图不会离开你的设备。
- 把照片裁切为标准证件照尺寸（一寸 / 二寸等），并可选替换背景底色。
- 背景替换以图片四角的颜色作为“原背景”参考，容差控制替换范围。
- 处理在本地完成，照片不会上传。
完全免费、无需注册；所有处理都在浏览器本地完成，文件不会上传到任何服务器。
相关关键词：证件照尺寸修改、图片处理、证件照、一寸、换底色、在线工具、免费
如何使用「证件照尺寸修改」
- 打开工具：打开「证件照尺寸修改」页面，无需注册、无需安装任何软件。
- 准备输入：准备好要处理的内容或文件：文本可直接粘贴，文件可拖入页面（本工具属于「图片处理」）。
- 填入内容：把内容粘贴进输入框，或把文件拖入页面；也可以点击「示例」先填入样例数据试一下。
- 设置选项并处理：按需调整页面上的选项，然后点击处理 / 转换 / 生成按钮。
- 获取结果：处理完全在浏览器本地完成，结果可直接复制或下载，文件不会上传到任何服务器。
常见问题
- 换底色后人物边缘有残色？
- 调大容差可扩大替换范围；若人物与背景颜色接近，建议用专业抠图工具先去背。
- 尺寸是印刷标准吗？
- 采用常见的 295×413（一寸）等像素规格，打印时请按 300dpi 设置。
ID Photo Resizer (English)
Crop and recolor standard ID photos (1-inch, 2-inch).
Belongs to “Image Tools”: Canvas-based local image editing; your originals never leave the device.
- Crops a photo to standard ID sizes (1-inch / 2-inch, etc.), with optional background color replacement.
- Bg replacement uses the four-corner colors as the “original background” reference; tolerance controls the range.
- Processing is local; the photo is never uploaded.
Free, no sign-up; everything runs locally in your browser and files are never uploaded.
Keywords: ID Photo Resizer, Image Tools, id photo, recolor, online tool, free
How to use it
- Open the tool：Open the “ID Photo Resizer” page — no sign-up and nothing to install.
- Prepare the input：Prepare the content or file to process: paste text or drop a file onto the page (this tool belongs to “Image Tools”).
- Provide the input：Paste your content into the input box or drop a file onto the page; you can also click “Sample” to try example data first.
- Adjust options and run：Adjust the options if needed, then click the process / convert / generate button.
- Get the result：Everything runs locally in your browser; copy or download the result — your files are never uploaded.
FAQ
- Residual color on edges after bg change?
- Increase tolerance to widen the range; if the subject is close in color to the bg, use a proper cutout tool first.
- Are the sizes print-standard?
- Uses common pixel specs like 295×413 (1-inch); set 300dpi when printing.
More tools in Image Tools
- Image Compressor — Adjust quality and size, batch compress and compare.
- Image Cropper — Drag a box to crop, with common ratio lock.
- Image Resize — Scale a single image by pixels or percentage.
- Batch Image Resize — Resize multiple images uniformly and zip them.
- Image Watermark — Text or image watermark with opacity and tiling.
- Batch Watermark — Apply a uniform watermark to many images at once.
- Image Color Picker — Pick any pixel color and copy its value.
- Replace Image Color — Replace a color with a new one within tolerance.
- Image Grid Cutter — Slice into tiles and pack into a ZIP.
- Photo Frame Maker — Add borders, rounded corners and shadow to photos.
- Perspective Correction — Pick four corners to straighten a tilted document.
- Image Filter & Tune — Live brightness/contrast/saturation/blur adjustment.
- Poster Generator — Auto-typeset copy into a downloadable share image.
- OCR Text Recognition — Recognize Chinese/English text in images locally.
- Favicon Generator — Generate multi-size site icons from one image and zip.