100% Private & Local — Your files NEVER leave your device
Free PDF Toolkit
12 tools in one page. Works offline. Zero server upload. No account needed.
Choose a tool
✂️
Split PDF
🔗
Merge PDF
🖼️
PDF → Images
📄
Images → PDF
🔄
Rotate Pages
🗑️
Delete Pages
🔢
Page Numbers
💧
Watermark
📝
Extract Text
🔐
Password
↕️
Reorder Pages
📦
Compress PDF
·
Drop your PDF here
or click to browse · Max 200 MB
📄
Split Mode
One range per line. e.g.: 1 · 2-4 · 5,7,9
Processing…0%
Drop PDFs here
Multiple files · Use ↑↓ to reorder
Merging…0%
Drop your PDF here
Each page exported as JPG · Zipped for download
📄
Image Quality
Higher quality = larger file size
Converting…0%
Drop images here
JPG · PNG · WebP · Each image = one page
Page Size
Creating PDF…0%
Drop your PDF here
or click to browse
📄
Click individual pages to rotate CW (+90°)
Processing…0%
Drop your PDF here
or click to browse
📄
Click pages to select for deletion. Selected pages shown in red.
Processing…0%
Drop your PDF here
or click to browse
📄
Position
Format
Processing…0%
Drop your PDF here
or click to browse
📄
Style
25%
CONFIDENTIAL
Preview
Processing…0%
Drop your PDF here
or click to browse
📄
Extracting…0%
Drop your PDF here
or click to browse
📄
Encrypting…0%
Drop encrypted PDF here
or click to browse
🔒
Decrypting…0%
Drop your PDF here
or click to browse
📄
Drag pages to rearrange order
Processing…0%
Drop your PDF here
or click to browse
📄
Compression Mode
Before
—
→
After
—
Saved
—
Compressing…0%
FAQ
Are my files safe? ▾
Yes. All processing happens entirely in your browser using JavaScript. Your files are never uploaded to any server. Not even a single byte leaves your device.
Does it work offline? ▾
Once the page is loaded (including the PDF library scripts), all tools work completely offline. No internet connection required for processing.
What is the file size limit? ▾
There's no hard limit — it depends on your device's RAM. Most tools handle PDFs up to 200 MB without issues. Very large files or the Balanced/Maximum compress modes may require more memory.
How does compression work? ▾
Quick: Re-saves the PDF with optimized object streams — best for PDFs with duplicate objects. Balanced: Re-renders each page as JPEG at 72% quality. Maximum: Re-renders at 75% scale + 45% JPEG — smallest file, slight quality loss.
Free Online PDF Tools — No Upload, No Account, No Waiting
Every time you upload a PDF to a cloud service, your document travels to a remote server, gets processed by software you cannot inspect, sits in a queue behind thousands of other users, and is (hopefully) deleted afterward. For a routine task like splitting a presentation or compressing a report, that is an unreasonable amount of trust to place in a service you just found on Google. This free PDF toolkit takes a different approach: every operation — splitting, merging, rotating, compressing, watermarking, adding page numbers, extracting text, setting passwords, and more — runs entirely inside your browser using JavaScript. Nothing is transmitted over the network. Nothing is stored. The moment you close the tab, no trace of your document remains anywhere except on your own device.
The practical benefits go beyond privacy. Because there is no server round-trip, processing is often faster than cloud alternatives — a 50-page PDF splits in under a second on a modern laptop. There are no file-size queues, no "please wait while we process your document" delays, and no frustrating file-size caps that force you to downgrade to a paid plan. The tool works the same whether you are on a coffee-shop Wi-Fi, a plane with unreliable connectivity, or completely offline — as long as the page has already loaded in your browser tab. For professionals handling confidential documents — legal contracts, financial statements, medical records, client data — this architecture is not just convenient; it is the only responsible choice.
Use cases span every professional context. Lawyers split multi-exhibit PDFs to attach individual documents to case filings. Accountants merge monthly invoices into a single year-end PDF for their auditors. Teachers rotate scanned handouts that arrived upside-down. Designers compress high-resolution portfolio PDFs to fit email attachment limits. Developers extract text from PDFs to feed into downstream processing pipelines. Students reorder pages in a downloaded syllabus so the most relevant sections appear first. The twelve tools on this page cover nearly every routine PDF manipulation task, and because they all live in one browser tab, you never need to hunt for a different tool for each job.
Frequently Asked Questions
What exactly happens to my PDF file when I use this tool?
Your PDF is loaded directly into your browser's memory using the File API. It is then processed by the pdf-lib and PDF.js JavaScript libraries running locally. The result is offered as a download from the same browser memory — it never touches a server. If you open your browser's Network tab in DevTools during processing, you will see zero PDF-related network requests.
Why is my compressed PDF sometimes not much smaller?
The "Quick" compression mode removes redundant objects and re-packs the PDF structure — it works best on PDFs with duplicated fonts or reused images, but has little effect on already-lean PDFs. Try "Balanced" or "Maximum" mode: these re-render each page as a compressed JPEG image, which typically cuts file size by 40–70% on PDFs containing scanned pages, photos, or high-resolution graphics. Note that Maximum mode trades some visual quality for the smallest possible file.
Does this work on mobile devices?
Yes — all tools work on iOS Safari and Android Chrome. The interface is fully responsive. The main limitation on mobile is RAM: very large PDFs (100+ pages or 50+ MB) may cause the browser tab to crash on devices with less than 3 GB of RAM. For large documents, use a desktop browser for best results.
Can I edit the actual text inside a PDF?
No — editing the text content of a PDF (changing words, rewriting paragraphs) requires a full PDF editor like Adobe Acrobat or a dedicated web service. This toolkit handles structural operations: rearranging, splitting, merging, visual overlays (watermarks, page numbers), and format-level compression. The "Extract Text" tool lets you copy all text content out of a PDF so you can edit it in a word processor and re-export if needed.
免费在线 PDF 工具箱：文件不上传，无需注册，12 项功能一页搞定
每次把 PDF 上传到云端服务，你的文件就经历了一段不透明的旅程：被发送到你无法审查的远程服务器、与成千上万其他用户的文件排队处理，最后寄希望于对方真的把文件"删除干净"。对于拆分一份报告、压缩一份简历这样的日常需求，这需要你付出过多的信任。本 PDF 工具箱采用完全不同的架构：拆分、合并、旋转、压缩、添加水印、页码、提取文字、加密保护、重排页面……所有操作均通过 JavaScript 在你的浏览器本地完成，不传输任何数据，关闭标签页后文件痕迹在任何服务器上都不存在。
这种架构带来的好处远不止于隐私保护。由于省去了服务器往返，处理速度通常比云端方案更快——50 页的 PDF 在现代笔记本上不到一秒就能完成拆分。没有文件队列，没有"请稍候"提示，也没有强制付费才能解锁大文件的烦恼。无论你在咖啡馆 Wi-Fi、飞机上断网还是完全离线，只要页面已经加载完成，工具就能正常运行。对于处理合同、财务报告、病历档案、客户资料等敏感文件的专业人士而言，这种设计不只是便利，更是负责任的唯一选择。
使用场景贯穿各类职业需求：律师将多附件 PDF 拆成单独文件分别提交；会计将月度发票合并为年终单一 PDF 交给审计；教师旋转扫描方向颠倒的讲义；设计师压缩高分辨率作品集以满足邮件附件大小限制；开发者从 PDF 中提取文本供下游处理；学生对下载的教学材料重排页序，让最关键的部分排到最前面。页面上的 12 项工具覆盖了几乎所有日常 PDF 操作需求，全部集中在一个浏览器标签页内，再也不用为每个任务单独搜索工具。
常见问题
使用工具时，我的 PDF 文件究竟经历了什么？
文件通过浏览器的 File API 加载到本地内存中，由 pdf-lib 和 PDF.js 两个 JavaScript 库在本地完成处理，结果以下载方式直接从同一块内存提供。整个过程零网络请求——你可以打开浏览器开发者工具的 Network 标签页验证，处理期间不会出现任何与 PDF 相关的请求。
为什么压缩后的 PDF 有时体积变化不大？
"快速"模式仅清除重复对象并重新打包文件结构，对字体或图像有大量重用的 PDF 效果明显，对本身已经精简的 PDF 效果有限。建议改用"均衡"或"最大"模式：这两种模式会将每一页重新渲染为压缩 JPEG 图像，对含有扫描页面、照片或高分辨率图形的 PDF 通常能压缩 40–70%。注意"最大"模式以轻微画质损失换取最小文件体积。