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头对头基准测试
LightPDF vs SmartPDFs
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。SmartPDFs 记录了 147 月访问量，增长率为 -93.3%，定价为免费。
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。SmartPDFs 记录了 147 月访问量，增长率为 -93.3%，定价为免费。
SmartPDFs is a free web tool that summarizes PDF documents in seconds. You upload a PDF, pick a language, and the app generates a quick, clear and shareable summary, so you can grasp a long document without reading every page.
| 维度 / 指标 |  | |
|---|---|---|
| 官方域名 | lightpdf.com | smartpdfs.ai |
| 定价模式 | 免费增值 | 免费 |
| 月访问量 | 174.26万 (1,742,568) | 147 (147) |
| 月度环比流量变化 | -31.46万 (-15.3%) | -2059 (-93.3%) |
| 主要市场与份额 | 🇮🇳 印度 (24.9%) | 🌐 全球 (—) |
| 直接访问 / 月 | 44.21万 | 63 |
| 用户评分 | 4.2 | 4.3 |
| 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。
SmartPDFs is a free web tool that summarizes PDF documents in seconds. You upload a PDF, pick a language, and the app generates a quick, clear and shareable summary, so you can grasp a long document without reading every page.
Upload a PDF and get a concise summary in seconds, so you can understand the gist without reading the full document.
Choose the language for the summary before generating, making it easy to read a document in your preferred language.
Summaries are clean and easy to share with colleagues or classmates as a quick overview of a document.
SmartPDFs is open source, with its code published on GitHub for anyone to inspect or self-host.
把长篇 PDF 变成清晰摘要，并可与之对话
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.
PDF.ai lets you chat with any PDF using AI: upload or open a document and ask questions to get answers with citations, instant summaries and extracted data. The platform also provides a developer API for parsing documents, pulling out structured data and splitting PDFs inside your own workflows.
PDF.ai lets you chat with any PDF using AI: upload or open a document and ask questions to get answers with citations, instant summaries and extracted data. The platform also provides a developer API for parsing documents, pulling out structured data and splitting PDFs inside your own workflows.
具备交互式 PDF 对话与填表功能，但高级桌面编辑与转换选项较少。
