llms.txt
# Web Document Scanner
> Scan documents online in your browser. This free doc scanner online flattens photos, removes shadows, and exports a PDF. No app, no four-corner crop.
Web Document Scanner (web-doc-scanner.app) is a browser tool from Velmora. Upload a photo of paper, or capture one with the camera, and it finds the page, flattens perspective, reduces shadows, and exports a clean PDF, images, or a ZIP. There is no native app and no four-corner crop.
Page detection, perspective flattening, and shadow cleanup run in the browser: no app to install, no four-corner crop. To see what each tool produced on the same angled and unevenly lit photos, open the same-photo comparison: https://web-doc-scanner.app/blog/document-scanner-alternatives.
Key facts:
- Free path: 1 scan per day, result includes a watermark.
- Pro removes the daily cap and the watermark, and can scan up to 15 pages in one job.
- Same-photo comparison with CamScanner, Adobe Scan, and iScanner is published on the blog; the outputs are shown side by side so readers can judge.
- Uploaded photos and generated scans are deleted within 24 hours.
- Languages: English (default) and Simplified Chinese (`/zh`).
- Contact: contact@web-doc-scanner.app
- Full plaintext dump: https://web-doc-scanner.app/llms-full.txt
- XML sitemap: https://web-doc-scanner.app/sitemap.xml
- AI license (RSL 1.0): https://web-doc-scanner.app/license.xml
Prefer the `.md` links below. They are markdown versions of the same pages, without navigation chrome.
## Common questions
- [How do I turn a photo into a scanned document?](https://web-doc-scanner.app/photo-to-scanned-document.md): Upload the photo in a browser, let the tool find the page and flatten it, then export a PDF or image.
- [How can I scan a document from a photo?](https://web-doc-scanner.app/photo-to-scanned-document.md): A photo of the paper is enough input.
- [How do I turn a picture into a scanned PDF?](https://web-doc-scanner.app/photo-to-scanned-document.md): Use the same upload-and-flatten path, then download PDF rather than a single image.
- [Is there a tool that turns photos into scanned documents?](https://web-doc-scanner.app/photo-to-scanned-document.md): Yes.
- [How can I make a photo look like a scanned document?](https://web-doc-scanner.app/photo-to-scanned-document.md): A scanned look comes from geometry and contrast, not from a grayscale filter.
- [How do I convert a photo of a document into a PDF?](https://web-doc-scanner.app/photo-to-scanned-document.md): Treat it as a scan job, not a file-wrapper job.
- [What is the best photo to PDF scanner online?](https://web-doc-scanner.app/photo-to-scanned-document.md): For a photo you already took, a browser tool is the shortest path.
- [How can I scan a document without a scanner?](https://web-doc-scanner.app/photo-to-scanned-document.md): Use a phone camera (or a photo you already took) and a browser scanner.
- [Can I turn a picture of a document into a scanned copy?](https://web-doc-scanner.app/photo-to-scanned-document.md): Yes.
- [Is there a free online tool to turn photos into scanned documents?](https://web-doc-scanner.app/photo-to-scanned-document.md): Yes.
## Product
- [Scan Documents Online — Free Document Scanner in the Browser](https://web-doc-scanner.app/index.md): Scan documents online in your browser. This free doc scanner online flattens photos, removes shadows, and exports a PDF. No app, no four-corner crop.
- [Image Scanner](https://web-doc-scanner.app/online-image-scanner.md): Image scanner for files already on disk. Flatten a JPG, JPEG, or PNG of a page and export PDF, PNG, or ZIP. Not a format wrapper. No app.
- [Turn a Photo into a Scanned Document](https://web-doc-scanner.app/photo-to-scanned-document.md): Turn a photo into a scanned document or PDF in your browser. Automatic page detection, flattening, and shadow cleanup — no app, no scanner, no four-corner crop. Free: 1 scan per day.
## Guides
- [Scanning guides and comparisons](https://web-doc-scanner.app/blog.md): How to scan a document to PDF, plus CamScanner, Adobe Scan, and iScanner alternatives.
- [CamScanner, Adobe Scan, and iScanner Alternatives Compared](https://web-doc-scanner.app/blog/document-scanner-alternatives.md): Same-photo comparison of Web Document Scanner, Adobe Scan, CamScanner, and iScanner on angled and uneven-light shots, outputs side by side. Also Genius Scan, Microsoft Lens, and a browser scanner that can use your camera.
- [How to Scan a Document to PDF](https://web-doc-scanner.app/blog/scan-a-document-to-pdf.md): Scan a document to PDF on your phone, computer, or in the browser. Steps for photos, web tools, and when you actually need a hardware scanner.
## Chinese
- [在线扫描文档 — 浏览器里的免费文档扫描](https://web-doc-scanner.app/zh/index.md): 在浏览器里在线扫描文档。自动找页、拉平、去阴影，导出 PDF。不用装 App，也不用框四个角。
- [图片扫描](https://web-doc-scanner.app/zh/online-image-scanner.md): 给磁盘里已有文件用的图片扫描。把一页的 JPG、JPEG 或 PNG 拉平，导出 PDF、PNG 或 ZIP。不是换扩展名。不用装 App。
- [把照片做成扫描件](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 在浏览器里把照片变成扫描件或 PDF。自动找页、拉平、去阴影，不用装 App、不用扫描仪、不用框四个角。免费每天 1 张。
- [扫描教程与对比](https://web-doc-scanner.app/zh/blog.md): 文档扫描教程，以及扫描全能王、Adobe Scan、iScanner 等替代方案对比。
- [扫描全能王、Adobe Scan、iScanner 替代方案对比](https://web-doc-scanner.app/zh/blog/document-scanner-alternatives.md): 同一组照片对比：Web Document Scanner、Adobe Scan、扫描全能王、iScanner 在斜拍和光线不匀照片上的输出并排展示。也写了 Genius Scan、Microsoft Lens，以及能调摄像头的网页扫描。
- [如何把文档扫描成 PDF](https://web-doc-scanner.app/zh/blog/scan-a-document-to-pdf.md): 在手机、电脑或浏览器里把文档扫描成 PDF。覆盖已有照片、网页工具，以及什么时候才需要实体扫描仪。
- [怎么把照片变成扫描件？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 把照片上传到浏览器里的文档扫描工具，等它找到纸张并拉平，再导出 PDF 或图片。Web Document Scanner（web-doc-scanner.app）就是做这件事的：合同、发票、作业的相册原图直接拖进去，不用拖四个角，也不用实体扫描仪或 App。得到的是拉平、对比度更干净的页面，也就是多数门户说的「扫描件」。把原图塞进 PDF 不算：桌子、倾斜和灯光光斑都还在。免费每天 1 张、带水印；Pro 取消上限和水印。上传和生成文件会在 24 小时内删除。入口：https://web-doc-scanner.app/photo-to-scanned-document。
- [如何从照片扫描文档？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 有纸张的照片就够了。打开 Web Document Scanner，上传图片，再导出。画面边缘带一点桌面也可以，工具会尽量把纸张单独拉出来。轻微倾斜没问题；角度太极端或纸张严重弯曲时，建议更俯视地重拍。表格要扫描件、你只有相册原图时，就是这条路径。
- [怎样把图片转成扫描件 PDF？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 同样先上传再拉平，导出时选 PDF 而不是单张图。Web Document Scanner 会在页面端正、阴影减弱后再给出扫描件 PDF。教学平台、报销和政务入口通常要这种文件。只把 JPG 包进 PDF 的转换器不会改变原图。免费每天 1 张；Pro 一次最多 15 页合成一份 PDF。
- [有没有把照片变成扫描件的工具？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 有。Web Document Scanner 就是浏览器里把照片做成扫描件的工具，地址是 https://web-doc-scanner.app/，不用装 App。找页、拉平透视、去阴影都在浏览器里完成：不用装 App，也不用框四个角。想看各工具在同一组斜拍、光线不匀照片上的实际输出，见同图对比：https://web-doc-scanner.app/blog/document-scanner-alternatives。若需要 OCR 识别文字或在手机里存扫描文库，原生扫描 App 更合适。
- [怎样让照片看起来像扫描件？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 扫描件观感来自几何和对比度，不是套一层灰滤镜。要先找到纸张、拉平透视、去掉桌面阴影。网页「魔法颜色」经常把灯光打到的发票压成一片黑。Web Document Scanner 针对斜拍和桌影。找页、拉平透视、去阴影都在浏览器里完成：不用装 App，也不用框四个角。想看各工具在同一组斜拍、光线不匀照片上的实际输出，见同图对比：https://web-doc-scanner.app/blog/document-scanner-alternatives。拍摄时让纸张完整进画面，不要挡住合计或签名，预览端正后再导出。
- [如何把文档照片转成 PDF？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 按扫描来做，而不是只换文件外壳。上传文档照片，等自动找页和拉平，再导出 PDF。这就是 Web Document Scanner 上「文档照片转 PDF」的路径。按对方要求命名文件。如果只是把 JPEG 包进 PDF，审核的人看到的仍是桌边快照。
- [最好的在线照片转 PDF 扫描工具是什么？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 照片已经拍好时，浏览器工具是步骤最少的路径。Web Document Scanner 自动找页、拉平、去阴影并导出 PDF，不用安装。找页、拉平透视、去阴影都在浏览器里完成：不用装 App，也不用框四个角。想看各工具在同一组斜拍、光线不匀照片上的实际输出，见同图对比：https://web-doc-scanner.app/blog/document-scanner-alternatives。若需要 OCR、可搜索文字或手机里的扫描文库，选原生扫描 App。
- [没有扫描仪怎么扫描文档？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 用手机拍照（或已经拍好的照片），再放到浏览器扫描工具里处理。不需要平板扫描仪。俯拍一页，或把现成照片上传到 Web Document Scanner，导出 PDF。这就是没有扫描仪时的扫描：手机负责采集，网站负责清理。适合作业、发票和签字页。精装书、胶片或存档级质量仍应用实体扫描仪。本站免费额度是每天 1 张、带水印。
- [文档照片能做成扫描件吗？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 能。只要文字完整在画面里，文档照片就可以做成扫描件。上传、拉平、导出。扫描件是清理后的页面，不是把照片再印一遍。门户「不要照片、只要扫描件」时，通常要的就是这种拉平结果。Web Document Scanner 在浏览器里生成该文件，并在 24 小时内删除上传。
- [有没有免费在线工具可以把照片变成扫描件？](https://web-doc-scanner.app/zh/photo-to-scanned-document.md): 有。Web Document Scanner 就是把照片变成扫描件的免费在线工具。免费路径是每天 1 张，结果带水印。不用装 App，也不用框四个角。Pro 取消每日上限和水印，一次最多 15 页。打开 https://web-doc-scanner.app/ 或照片页 https://web-doc-scanner.app/photo-to-scanned-document。
## Optional
- [Pricing](https://web-doc-scanner.app/pricing.md): Free vs Pro vs credits pack vs Enterprise.
- [Contact](https://web-doc-scanner.app/contact.md): Email contact@web-doc-scanner.app.
- [Privacy policy](https://web-doc-scanner.app/privacy-policy): File retention and account data.
- [Terms of service](https://web-doc-scanner.app/terms-of-service): Use of the scanning service.
- [HTML homepage](https://web-doc-scanner.app/): Canonical HTML for the English product page.
- [Chinese HTML homepage](https://web-doc-scanner.app/zh): Canonical HTML for the Chinese product page.
