How to Use PDF Compressor
- Upload a PDF document.
- Choose a compression level.
- Click Compress PDF.
- Compare sizes and download the result.
Why Use This Tool?
A smaller PDF is easier to email, store, and upload. Optimization can remove redundant object structure while preserving text and layout.
Frequently Asked Questions
- How much smaller will my PDF be?
- It depends on how the PDF was created. Files with unused objects or inefficient streams may shrink substantially; already-optimized PDFs may change little.
- What does High compression do?
- High asks the PDF library to use its strongest available object-stream compression. It does not rasterize or delete pages.
- Is my document uploaded?
- No. Your PDF is read and compressed by JavaScript in your browser.