
LightPDF 记录了 1,742,568 月访问量,月度环比增长为 -15.3%,定价为免费增值。Riter 记录了 0 月访问量,增长率为 0%,定价为免费增值。
Riter is an AI-assisted writing workspace built specifically for people developing a full-length book, from early ideas and author interviews through outlines, chapters and a finished manuscript. Rather than generating generic prose, it is designed to keep your own experience, voice and judgement at the centre while it helps you develop structure, arguments and revisions chapter by chapter.
| 维度 / 指标 | ![]() | |
|---|---|---|
| 官方域名 | lightpdf.com | riter.app |
| 定价模式 | 免费增值 | 免费增值 |
| 月访问量 | 174.26万 (1,742,568) | 0 (0) |
| 月度环比流量变化 | -31.46万 (-15.3%) | 0 (0%) |
| 主要市场与份额 | 🇮🇳 印度 (24.9%) | 🌐 全球 (—) |
| 直接访问 / 月 | 44.21万 | 0 |
| 用户评分 | 4.2 | 3.9 |
| 支持的平台 | 网站 | 网站 |

跨设备的免费 AI PDF 编辑、转换与阅读工具
上传 PDF 后用自然语言提问、追问细节,并查看答案引用的原文段落;另有模式可直接解析 YouTube 视频。
把整份文档翻译成 20 多种语言,包括扫描版和图片型 PDF,并尽量保持原有排版不变。
自动把发票、收据、银行对账单和采购订单转成结构化的 Excel 文件。
编辑文字与图片、OCR 扫描页、与 Office 格式互转,并支持合并、拆分、压缩、水印、签名与批注。
Riter is an AI-assisted writing workspace built specifically for people developing a full-length book, from early ideas and author interviews through outlines, chapters and a finished manuscript. Rather than generating generic prose, it is designed to keep your own experience, voice and judgement at the centre while it helps you develop structure, arguments and revisions chapter by chapter.
Start from author and book interviews, spoken thoughts and selected writing so your manuscript is grounded in your own experience, purpose and intended reader.
Get help shaping outlines, chapters and research trails while keeping every change open to your own review and approval.
Work in a browser editor with chapters, notes beside your draft, and a wording review that flags patterns for you to consider.
See separate states for voice, originality, accuracy and continuity, presented honestly as review signals rather than measured scores.

Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.
Offers a robust desktop suite for OCR and editing, but requires software installation unlike cloud platforms.

Provides quick browser-based PDF editing and e-signatures, but has a less advanced conversational AI assistant.
自带真实文献与自动引文的 AI 学术写作工具
免费、无限、无需注册、无内容过滤的 AI 故事生成器