Compress PDF — Reduce File Size Online
Reduce PDF file size without losing quality. Free, fast, no signup.
Drop your PDF files here
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Max 25MB per file (free) · No signup required
How to Compress PDF
Upload PDF
Click upload or drag and drop your PDF file.
Choose Compression
Select compression level: light, medium, or maximum.
Download
Download your compressed PDF instantly.
Features
Quality Preserved
Smart compression maintains readability while reducing size.
Multiple Levels
Choose light, medium, or maximum compression to suit your needs.
Batch Compress
Compress multiple PDF files at once with paid plans.
Target Size
Compress to a specific file size like 1MB, 500KB, or 100KB.
Shrink your PDF files to a smaller size while maintaining document quality. LunarPDF's compression tool uses smart algorithms to optimize images, fonts, and internal structures. Choose from three compression levels — light for minimal reduction, medium for balanced results, or maximum for the smallest file size. Perfect for email attachments, uploads, and archiving. Compress PDFs to specific target sizes like 1MB, 500KB, or 100KB.