132+ free PDF tools · No sign-up
Every PDF tool you need, supercharged.
Merge, split, compress, convert, edit and sign PDFs in seconds. Everything runs right in your browser, so your files never leave your device.
- 100% free
- No uploads, fully private
- Works on any device
Pick a tool, get it done
Popular tools up front, with every other PDF job one click away.
合并 PDF 与多格式文件
将多个 PDF、图片（JPG/PNG/WebP）、Office 文档（Word/Excel/PPT）和文本文件快速合并为一个统一的 PDF 文档。免费在线文件合并器，支持拖拽排序与书签保留。
拆分PDF
将PDF文件拆分成多个文档。提取特定页面或按页面范围分割。
压缩PDF
减小PDF文件大小同时保持质量。免费在线PDF压缩器，生成更小的文件。
PDF转Word
将PDF转换为可编辑的Word文档（DOCX）。保留原始布局、格式和图像。
PDF转PowerPoint
将PDF转换为PowerPoint (PPTX)演示文稿。每一页转为高质量幻灯片。
PDF转Excel
将PDF转换为Excel表格。将表格提取为XLSX格式。
Word转PDF
将Word文档（DOCX）转换为PDF。保留格式和布局。
PowerPoint转PDF
将PowerPoint演示文稿（PPTX）转换为PDF。保留幻灯片内容便于分享。
Excel转PDF
将Excel电子表格（XLSX）转换为PDF。保留表格和数据。
编辑PDF
在线直接编辑PDF正文文本与图像。支持点击段落原位修改、实时自动排版折行，同时保留经典批注与高亮标记。
PDF转JPG
将PDF页面转换为JPG图像。高质量提取，可自定义分辨率。
JPG转PDF
将JPG图像转换为PDF。将多个JPG文件合并成一个PDF文档。
签署PDF
为PDF文档添加电子签名。绘制、输入或上传您的签名。
添加水印
为PDF文件添加文本或图像水印。保护和品牌化您的文档。
旋转PDF
旋转PDF页面。将页面旋转90、180或270度。
整理PDF
重新排序、复制和删除PDF页面。拖放重新整理您的文档。
加密PDF
为PDF文件添加密码保护。添加加密并设置权限。
解密PDF
从PDF文件中删除密码。解锁受密码保护的文档。
页码
为PDF文档添加页码。自定义位置、格式和起始编号。
OCR PDF
使用OCR使扫描的PDF可搜索。从图像和扫描文档中提取文本。
PDF转PDF/A
将普通PDF转换为适合长期存档的PDF/A格式。符合ISO标准。
修复PDF
修复损坏的PDF文件。恢复和修复受损文档。
比较PDF
比较两个PDF文档。高亮显示版本之间的差异。
PDF 涂黑与马赛克脱敏
可视化对 PDF 进行抹黑遮盖、马赛克打码或高斯模糊。物理像素级不可逆销毁与深度元数据清理，100% 本地离线保障隐私安全。
How PDFCharger works
- 1
Choose your files
Click "Select files" or drag & drop PDFs, images or Office documents onto the page.
- 2
Pick a tool
Merge, compress, convert, sign — set any options you need. Processing happens instantly on your device.
- 3
Download the result
Save your finished file straight away. Nothing is stored or uploaded to any server.
The PDF toolkit that never uploads your files
Most online PDF sites send your documents to their servers. PDFCharger does the work inside your browser using WebAssembly, so contracts, statements and IDs stay on your device.
100%私密
所有处理都在您的浏览器中进行。您的文件永远不会离开您的设备。
Lightning fast
No upload or download queues — files are processed locally at full speed.
完全免费
无需注册，无限制，无隐藏费用。
Works anywhere
Windows, Mac, Linux, iPhone or Android. All you need is a modern browser.
- 132+
- PDF 工具
- 100%
- 免费使用
- 18
- 支持语言
- 0
- 文件上传
Frequently asked questions
Is PDFCharger really free?
Yes. Every tool is free to use with no sign-up, no watermarks and no daily limits.
Are my files uploaded anywhere?
No. PDFCharger processes files entirely inside your browser. Your documents never leave your device, which makes it safe for confidential files.
Is there a file size limit?
There is no fixed limit. Very large files depend on your device's memory, but typical documents of hundreds of pages work smoothly.
Does it work on my phone?
Yes. PDFCharger works in any modern browser on desktop, tablet and mobile — no app to install.
Can I convert Word, Excel and PowerPoint files?
Yes. You can convert Office documents to PDF and convert PDFs back to Word, Excel, PowerPoint, images and more.
Ready to charge through your PDFs?
Free, private and instant. Drop a file and pick a tool.