直接编辑 PDF 文字、图片、批注与图形，保留原始文件结构和视觉效果；无需先转换成 Word，也无需同时接入多个零散工具。
Edit PDF text, images, annotations and shapes directly while preserving the original document structure and visual fidelity—without converting to Word or combining multiple tools.
通过查看我们精心录制的演示视频，快速了解编辑文字、图片、批注、图形和操作阅读器的完整流程。
Watch the complete ElasticPDF demo video to see PDF text editing, image editing, annotations and shape editing, and the smart PDF reader works.
查看视频 → watch video →根据最新中英文产品演示重新梳理功能模块，用更清晰、更专业的方式呈现 ElasticPDF 的完整编辑能力。
Reorganized from the latest product demos to present ElasticPDF's editing workflow in a clearer, more professional way.
直接修改 PDF 原文字，支持更新内容、修正错别字、调整字体和格式；改变文本框宽度后可自动重排段落，并尽量保持原始版式。
Modify original PDF text directly, fix content, adjust fonts and formatting, and automatically reflow paragraphs when the text box changes.
选择 PDF 中原有图片后即可替换、裁剪、旋转、缩放和调整透明度；支持常见图片格式，并可控制图层顺序。
Select an existing image to replace, crop, rotate, resize or adjust transparency, with common image formats and layer ordering support.
提供高亮、下划线、删除线、手绘、便签、图章和签名等完整审阅工具，适用于合同审批、团队协作和文档留痕。
Highlight, underline, strike out, draw, add notes, stamps and signatures for contracts, review workflows and collaboration.
添加矩形、圆形、箭头、多边形和路径，设置描边、填充、透明度和线宽；同时支持添加和编辑超链接。
Create rectangles, circles, arrows, polygons and paths, control stroke, fill, opacity and width, and edit hyperlinks.
提供缩略图、书签、搜索、单页/双页/连续阅读、全屏、深浅色模式和多语言界面，让阅读与编辑在同一套产品中完成。
Thumbnails, bookmarks, search, single or dual-page views, continuous mode, fullscreen, themes and multilingual UI in one reader.
将专业 PDF 编辑能力快速嵌入现有 Web、桌面端或移动端产品，不必从零开发复杂文档引擎。
Embed professional PDF editing into web, desktop or mobile products without building a complex document engine from scratch.
Web / Windows / macOS / iOS / Android
文件无需上传服务器，性能与数据安全更可控。
Keep files client-side for controllable performance and privacy.
稳定 API、模块化能力与深度定制支持。
Stable APIs, modular capabilities and deep customization.
适配内网、离线环境和企业合规要求。
Designed for intranet, offline and compliance-sensitive use.
•• 企业级离线 SDK 交付，无需任何云服务Enterprise-level offline SDK delivery, no cloud services required
•• 支持私有云、内网及离线环境部署Supports private cloud, intranet, and offline deployment
•• 永久可控技术自主，满足金融、医疗、政府、学术、出版社等场景Full control and independent technology, suitable for finance, healthcare, government, academia, and publishing
•• 不限坐席、不限设备、不限用户数Unlimited seats, devices, and users
•• 支持多系统多业务线复用Reusable across multiple systems and business lines
•• 独立授权与专属代码包Independent license and dedicated code package
•• 避免云厂商锁定风险Avoids vendor lock-in risks
•• 满足高合规与数据安全要求Complies with strict regulatory and data security requirements
•• 纯 JavaScript PDF 编辑引擎 Pure JavaScript PDF editing engine
•• 一套代码适配所有操作系统、开发框架 One codebase fits all operating systems and development frameworks
•• 跨平台支持所有操作系统，如 MacOS, iOS, Windows, Android, Linux 等 Supports all major OS platforms, e.g., MacOS, iOS, Windows, Android, Linux
•• 其他未列出操作系统也完全可用，如中国国产操作系统（麒麟、统信 UOS 等） Other OS also fully supported, including Chinese domestic systems (Kylin, UnionTech UOS, etc.)
•• 跨平台支持所有应用开发框架 Supports all application development frameworks
•• Web 框架：HTML, jQuery, Vue, React, Angular, Flutter, Uni-app 等 Web frameworks: HTML, jQuery, Vue, React, Angular, Flutter, Uni-app, etc.
•• 桌面端：Flutter, Electron, NW.js, Tauri, Proton Native, Neutralino.js 等 Desktop: Flutter, Electron, NW.js, Tauri, Proton Native, Neutralino.js, etc.
•• 移动端：Android (Java/Kotlin), iOS (Swift/Objective-C) 等 Mobile: Android (Java/Kotlin), iOS (Swift/Objective-C), etc.
•• PDF 文字内容编辑功能 PDF text content editing
•• PDF 批注功能，如高亮、下划线、删除线、画笔、签名、多边形等 PDF annotation features: highlight, underline, strikethrough, pen, signature, polygon, etc.
•• 核心功能对标 Adobe Acrobat, 福昕Foxit, WPS, PDFTron 等方案 Core features comparable to Adobe Acrobat, Foxit, WPS, PDFTron, etc.
•• 代码包仅含 JavaScript, HTML 及 CSS Code package contains only JavaScript, HTML, and CSS
•• 无需配置开发环境，无需后端程序支持 No development environment setup or backend support required
•• 项目导入代码包文件，小时内即可完成部署 Deploy code package in project and complete setup within hours
•• 拥有完善的文档指引，专业的技术支持 Comprehensive documentation and professional technical support
•• 适合作为企业文档系统、OA 系统Suitable as core editing capability for enterprise document systems and OA systems
•• 可做档案系统的核心编辑能力Can serve as the core editing engine for archive systems
周一 - 周五: 09:00 - 17:00 (北京时间 UTC+8)
Monday – Friday: 09:00 – 17:00 (Beijing Time, UTC+8)
周一 - 周五: 09:00 - 17:00 (欧洲时间 UTC+1/UTC+2)
Monday – Friday: 09:00 – 17:00 (European Time, UTC+1 / UTC+2)