信噪 vs PDF Editor

每天忙了一整天，却说不清时间花在了哪里？ 信噪用"信噪比"这个简洁而强大的概念，帮你区分什么是信号（真正重要的事）、什么是噪音（无意义的干扰）。一天结束时，你会得到一个清晰的数字 - 它告诉你，今天的时间投入到底有多少价值。 你可以这样做 • 设置每日核心任务 - 真正推动你前进的事 • 记录次要任务 - 不可避免的日常琐事 • 专注计时 - 深度工作时激活，建立连续记录 • 查看三环进度 - 核心任务、次要任务、综合 SNR 一目了然 不只是工具 • 专注值系统 - 完成任务赚取 FocusPoints，解锁成就徽章 • 智能桌面小组件 - 小/中/大三种尺寸，桌面即可查看今日进度 • Siri 快捷指令 - 语音快速启动专注模式 • 专注过滤器 - 与 iOS 专注模式深度集成 • 历史记录 - 追踪每日信噪比变化趋势 • 农历支持 - 显示农历日期与节假日 信噪 Pro - 一次性买断，永久解锁 • 无限核心任务与次要任务 • 永久保留历史记录 • Pro 专属主题（钛金 & 极光） • CSV 数据报表导出 • 高级分析报告 把所有资源 all in 在不变的事物上 - 用最简单的信号，衡量最真实的生活。立即下载，开始你的一天。

Document Assistant is the all-in-one PDF toolkit that lives on your device. Scan paper, sign contracts, edit, convert and organize documents in seconds. Your files are processed on your iPhone or iPad and never uploaded to a server. SCAN PAPER TO PDF • Capture documents with your camera, with automatic edge detection and cropping • Save as PDF, searchable PDF with text recognition (OCR), or images • OCR in multiple languages makes scanned text searchable and selectable SIGN AND MARK UP • Draw your signature once and place it on any page • Highlight, underline, add text, notes, shapes and freehand drawings • Redact to permanently black out sensitive information • Works beautifully with Apple Pencil on iPad 35+ PDF TOOLS • Organize: merge, split, remove or extract pages, reorder, rotate and duplicate • Optimize: compress PDFs, repair damaged files, run OCR • Convert to PDF: images, Word, Excel, PowerPoint, RTF, text and HTML • Convert from PDF: Word (DOCX), Excel (XLSX), text and JPG, or extract images • Edit: add watermarks, page numbers and rotations • Security: protect PDFs with a password or remove one you know IMAGE TOOLS • Compress, resize, crop and rotate images • Convert to and from JPG, PNG, HEIC, GIF and TIFF • Add watermarks, upscale images, blur faces automatically, or make a meme SMART FILE LIBRARY • Folders, favorites, recent files and instant search • Create new PDFs from ready-made templates • A 30-day Bin so nothing is lost by accident • Your library is also available in the Files app ASK YOUR DOCUMENTS • Chat with a PDF to get summaries, key points and answers • Runs on-device with Apple Intelligence on supported devices DESIGNED FOR EVERY SCREEN • iPhone, iPad and iPhone Duo, in portrait and landscape • Light and Dark Mode PRIVATE BY DESIGN No account needed. Your documents are processed on your device and are never uploaded. Privacy policy: https://digitalhole.github.io/DHPrivacy.html Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/