有问题或建议？我们在认真听。 Questions or ideas? We read everything.
下载免费，阅读、表单填写与打印永久免费。批注、修正带、签名与页面管理属于「Lumo Pro」，一次性内购 ¥98（首发期 ¥68），没有订阅。 The download is free; reading, form filling and printing are free forever. Annotations, Correction Tape, signatures and page management are part of “Lumo Pro”, a one-time purchase of $12.99 (launch price $8.99). No subscription.
App Store 版：用同一 Apple 账户登录，打开 Lumo 设置（⌘,）点「恢复购买」即可。 App Store version: sign in with the same Apple Account, open Lumo Settings (⌘,) and click “Restore Purchases”.
它像纸上的修正带：拖过要改的文字，盖住原文并直接输入新字，字体字号颜色自动匹配。技术上它是标准 PDF 注释——原文内容从未被改动，随时可撤销，任何阅读器都能看到效果。 It works like correction tape on paper: drag over the text, it gets covered, and you type the fix — font, size and color match automatically. Technically it's a standard PDF annotation: your original text is never altered, it's undoable, and the result is visible in any reader.
不会。Lumo 完全离线，应用不申请网络权限，没有账号、没有遥测。详见隐私政策。 No. Lumo is fully offline and requests no network access — no accounts, no telemetry. See the Privacy Policy.
macOS 14（Sonoma）及以上，Apple Silicon 与 Intel 均支持。 macOS 14 (Sonoma) or later, on both Apple Silicon and Intel.
功能相同。App Store 版由商店托管更新、内购解锁 Pro；DMG 版为签名公证的独立安装包，新版本需回本站自行下载（应用零联网，不做自动更新）。 Same features. The App Store build gets updates via the store with an in-app Pro unlock; the DMG is a notarized standalone installer — check this site for new versions (the app never connects to the network, so no auto-update).
App Store 内购的退款由 Apple 处理：访问 reportaproblem.apple.com。有任何不满意也欢迎先写信给我们。 App Store purchases are refunded by Apple: visit reportaproblem.apple.com. And if anything disappoints you, we'd love to hear about it first.
写信到 support@lumoreader.app，附上 macOS 版本与 Lumo 版本号（设置 ⌘, 底部可见）。每封都会看。 Email support@lumoreader.app with your macOS version and Lumo build number (shown at the bottom of Settings, ⌘,). We read every message.
