压缩PDF
在保持质量的同时减小PDF文件大小。为文档选择标准压缩，或为最大程度减小尺寸选择强力压缩。
文件保留在您的设备上
100%基于浏览器
无需账户
Drop your PDF here to compress
Supported: PDF (up to 100.0 MB)
常见问题
PDF可以压缩多少？
标准压缩可减小10-50%的文件大小，同时保持文本质量。强力压缩可减小高达80%，但会将文本转换为图像。
压缩会降低质量吗？
标准压缩优化内部结构，不会损失质量。强力压缩可能会略微降低图像质量，但非常适合电子邮件附件。
Common Use Cases
Email attachments
Compress PDFs to fit within Gmail (25MB) or Outlook (20MB) limits. Smart compression keeps documents readable while drastically reducing size.
Upload to online forms
Government portals, university applications, and job sites often have strict file size limits. Compress to meet their requirements.
Save storage space
Batch compress archived PDFs to reclaim disk space. A folder of 100 PDFs can shrink from 500MB to under 200MB with Smart compression.
Faster sharing
Smaller PDFs upload faster to cloud drives, send quicker over messaging apps, and load faster for recipients on slow connections.