拆分 PDF
免费·无需注册·文件永不离开你的设备
How to split a PDF file in 3 steps
Cut one long PDF into exactly the pieces you need — by page ranges, fixed chunks, or single pages — without uploading anything anywhere.
Upload your PDF
Drag your document into the box above. It opens instantly in your browser — nothing is sent to a server.
Choose how to split
Type page ranges like 1-3,5, split at fixed intervals, or explode every page into its own file.
Download the results
Click Split PDF. Your files are packed into a ZIP and download immediately, ready to share.
Why split PDFs with AmiPDF
The splitter that respects both your document and your privacy.
隐私优先
处理完全在你的浏览器内完成。不上传、不存储、不外传——绝不。
无需注册，无水印
无账号、无邮箱、无限制。输出文件与输入完全一致。
Three split modes
Custom ranges, fixed intervals, or one-file-per-page — cover every splitting scenario without re-uploading.
任何设备可用
Windows、Mac、Linux、Android、iOS 上体验一致——无需安装。
When to split a PDF
Send someone only the pages they need. Split a 40-page contract into signature pages and appendix, or carve one chapter out of a report for a teammate.
Because files are processed on your device, splitting confidential documents — legal filings, medical records, IDs — never exposes them to a third-party server.
Split PDFs on any platform
AmiPDF 在你的浏览器中运行——无需安装、无需配置、无需更新。
Windows
Chrome, Edge, Firefox
macOS
Safari, Chrome
Linux
Any modern browser
iOS
Safari on iPhone, iPad
Android
Chrome, Samsung Internet
Frequently asked questions
How do I split a PDF into individual pages?
Choose the “Every page” mode and click Split PDF. You get one file per page, bundled in a single ZIP download.
Can I split by custom page ranges?
Yes. Type ranges in the box, separated by commas — for example 1-3,5,8-12. Each range becomes its own output file, in the order you typed them.
Does splitting a PDF reduce its quality?
No. Pages are copied losslessly from the source document. Text stays selectable, fonts and images are untouched.
Is there a file size or page limit?
No fixed limit. Splitting runs locally in your browser, so the practical ceiling is your device memory — files up to a few hundred MB work fine on most computers.
Can I split a password-protected PDF?
Encrypted files must be unlocked first. Run your document through the free Unlock PDF tool with your password, then split the unlocked copy.
Why do I get a ZIP file instead of one PDF?
Splitting produces multiple PDFs, so they are bundled into one ZIP for a single download. Every modern system opens ZIP files natively.
相关 PDF 工具
继续——处理 PDF 所需的其他工具，全部免费、全部本地运行。