Scan paper with your camera
Edges are found for you, the page is straightened, and the filter is chosen to make text crisp — then every page goes into one PDF. Receipts, contracts, IDs, whiteboards, handwritten notes.
- Original photos kept on this device until you delete the scan
- Corner drag with a magnifier for jobs like a passport or a receipt
- Auto, B&W, greyscale and colour filters, per page
- Saved in this browser's storage
Photos are saved on this device and processed here. Nothing is uploaded, and the original photo of every page is kept until you delete the scan — so a dropped connection, a closed tab or a failed download cannot lose a document you already photographed. Language: zh
- Originals stay on your device, even if the tab closes
- Corner drag with a magnifier for receipts and IDs
- One PDF from any number of pages, no watermark
Photograph paper, get a clean PDF
Point the camera at the page. The edges are found for you, the photo is straightened, and a filter is picked that turns grey paper back into white paper with dark text. Shoot as many pages as you need — receipts, contracts, ID cards, handwritten notes, a whiteboard — then download them as one PDF or one image per page. Everything runs on your device.
Your photos never leave the phone
A scan is often an ID, a bank letter or a signed contract — the last file that should be uploaded to a server to be rotated and cropped. The camera feed, the cropping, the filters and the PDF are all produced inside the browser. The original photo of every page is kept in this device's storage until you delete the scan, which is what makes an interrupted scan recoverable.
如何把文件扫描成 PDF
- 1打开扫描器并允许使用相机，或上传已经拍好的照片。不会上传任何内容：相机画面和照片都留在你的设备上。
- 2每张照片都会自动裁到纸张边缘并做清理。要手动修正，打开该页，把四个角拖到纸张边角上，右侧就能看到结果。
- 3为每页选滤镜：普通白纸用“自动”，要最小最锐利的纯文本文件用“黑白”，铅笔和印章用“灰度”，标志和照片用“彩色”。
- 4选择纸张尺寸和页边距，然后下载按顺序排列的单个 PDF，或每页一张图片的 ZIP。
为什么用 PDFTrusted 扫描
- 自动找到纸张：页面裁到边缘，倾斜也会被校正
- 为真实照片设计的滤镜：纸上的阴影会变回白纸和清晰文字
- 原始照片留在设备上，扫描中断也不会丢失
- 放大镜拖角：收据、证件或拍歪的页面可以精确对齐，也可以用方向键微调
- 多页合成一个文件：添加、排序、旋转、删除页面，导出为 A4、Letter、Legal 或页面原尺寸
- 免账号、无水印、不上传：相机、裁切、滤镜和 PDF 全部在浏览器里生成
扫描为 PDF 常见问题
扫描文件是免费的吗？
是。扫描是普通的免费工具，一次最多 60 页，导出的 PDF 没有水印。扫描和下载都不需要账号。
我的照片会上传到服务器吗？
不会。相机画面、透视校正、滤镜和 PDF 全部在浏览器里生成。扫描件往往是人们手里最敏感的一张纸——护照、银行信、签好的合同——这些东西不会离开你的设备。
如果页面重新加载，我的照片会怎样？
每页的原始照片在按下快门的那一刻、任何处理之前就写入了本地存储。无论是刷新、断网还是没电，未完成的扫描都会留在扫描器起始页等你继续。
可以扫描拍歪的文件吗？
可以。打开该页，把四个角拖到纸张的角上。拖动时会显示放大镜，让你看清角落位置，校正结果就在原图旁边显示。
扫描出的 PDF 能搜索文字吗？
本身不能：扫描件是 PDF 里的图像。要让文字可以选中，把导出的 PDF 交给 OCR PDF，它会识别文字并覆盖到页面上。
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