Compress PDF Online: Reduce PDF File Size

Resize and optimize your PDF files to reduce file size significantly. High-quality output, fast processing, and no installation required.

Reduce the size of your PDF by converting pages into optimized images.

Compression level:

How to Use the PDF Compressor Online

Select your PDF file
Upload the PDF you want to compress by clicking the highlighted area or dragging the file.
Choose the compression level
Select one of the options:
- Light: Keeps high visual quality, moderate size reduction (ideal for important documents).
- Moderate (recommended): Good balance between size and quality (most commonly used).
- Maximum: Very aggressive reduction, low-resolution images, noticeable quality loss (file becomes much smaller).
The higher the chosen reduction level, the greater the quality loss (especially in images and graphics).
Click “Compress PDF”
The tool will process the file and show the size before and after, along with the reduction percentage.
Download the compressed PDF
Click the button to save the optimized file to your computer.

The file remains a normal PDF — opens directly without needing to unzip.
Real internal size reduction (compressed images, removed metadata, optimized fonts).
Better compatibility: works on mobile, tablet, email, WhatsApp, etc., without extraction.
Zipping only “packages” the file — when the recipient opens it, the PDF will still be large.

Conclusion: Compressing the PDF is more practical, efficient, and professional for sharing and storage.

Ready to compress your PDF?
Upload the file now and test it!