图片转 PDF
把多张图片合并成一个 PDF 文件，适合做扫描件。
How to use / 使用步骤
- Upload one or more images in order.按顺序上传一张或多张图片。
- Click to build the PDF — each image becomes a page.点击生成 PDF，每张图成为一页。
- Download the single PDF file.下载单个 PDF 文件。
About Image to PDF Converter / 关于本工具
PDF is the universal document format: it opens identically on every device, prints reliably, and bundles multiple pages into one file. Turning images into a PDF is exactly what you want for photographed or scanned documents — contracts, ID copies, receipts, homework, handwritten notes — that you need to email or upload as a single tidy file. Instead of attaching eight separate photos, you send one PDF where each image is its own page, in the order you chose.
PDF 是通用的文档格式：在任何设备上打开都一模一样、打印稳定，还能把多页装进一个文件。把图片转成 PDF，正适合拍照或扫描的文档——合同、证件复印件、收据、作业、手写笔记——需要作为一个整洁文件来发邮件或上传的场景。你不再附上八张零散照片，而是发一个 PDF，每张图是单独一页，顺序由你决定。
Tips for clean document PDFs / 做出干净文档 PDF 的技巧
Crop each photo to just the page and rotate any that came out sideways before building the PDF, so every page sits upright and full-bleed. Keep the images reasonably sized — very high-resolution photos make a heavy PDF that's slow to email; compressing them first keeps the document light while staying readable. The PDF is assembled in your browser, so your documents never leave your device.
生成 PDF 前，先把每张照片裁到只剩页面、把拍歪的转正，这样每一页都端正、铺满。图片尺寸要适中——超高分辨率的照片会做出笨重、难以发邮件的 PDF；先压缩能让文档保持轻量又清晰可读。PDF 在你的浏览器里组装，文档绝不离开你的设备。