PDF Compression
Compress the size of PDF files online, reducing volume while maintaining quality
Drag or click to select a PDF file
Instructions
PDF 压缩使用说明
功能介绍
在线压缩 PDF 文件大小，保持质量的同时减小体积
使用方法
适用场景
❓ FAQ
Are there any usage restrictions?
Free users can use basic functions daily, Pro users have no restrictions.
Is my data secure?
All processing is done locally in the browser, your data will not be uploaded to the server.
Is this tool free?
Absolutely free, all features can be used without registration.
🔗 Related Tools
📝 Related Articles
What to Do When Removing Line Breaks from Large Files Causes Lag, Batch Method Comparison
This article explains the causes of lag in batch removing line breaks from large files and compares three methods, clarifying how to remove line breaks, the difference between deletion and replacing with empty, troubleshooting steps when it does not work, and specific approaches for mobile and API debugging scenarios, helping you choose the right route by file size and avoid repeated retries.
tool-tutorialsCan HTML to Markdown Be Used on Mobile? Installation-Free Online Conversion Method
You can complete HTML to Markdown with a mobile browser without installing any app. This article provides step-by-step operations you can follow directly, and gives troubleshooting order for common issues such as large file failures, API response format corruption, and distorted nested lists in tables, helping you stably obtain structurally correct Markdown text on mobile.
tool-tutorialsWhat Is the Difference Between Image to PDF and Online Conversion Tools? Which Is Safer
This article compares the differences between local conversion and cloud conversion in privacy, image quality, and controllability, provides complete operating steps for image to PDF, and focuses on answering four high-frequency issues: file compression, mobile installation-free use, conversion failure, and page ordering, helping you choose the right method according to image sensitivity.
tool-tutorialsWhat is the difference between PDF merging and PDF splitting? Which tool should I use?
After reading this article, you can quickly determine whether to use PDF merging or PDF splitting, master the four-step merging operation, and solve practical questions such as oversized files after merging, mobile operation, file corruption prompts, and browser security.