Compress PDF Online Free
Compress PDF files instantly with AngelPDF — the best private PDF compressor that lets you reduce PDF file size by up to 90%.
Drop PDF here or tap to browse
Any PDF file, up to 100 MB
How to Compress PDF Online in 3 Steps
Upload Your PDF
Drag and drop your compress PDF file or click to browse. Supports any PDF size.
Adjust Quality
Use the slider to balance file size and quality, or select a target size to compress PDF to 100KB, compress PDF to 200KB, or compress PDF to 1MB.
Download
Click Download to save your compressed PDF. Processing happens locally — you can even compress PDF offline.
Why Use AngelPDF to Reduce PDF Size?
Live quality slider
See estimated file size change in real-time as you adjust compression level.
Target size presets
Compress PDF to 100KB, 200KB, 500KB, 1MB or 2MB with one click.
Before & after comparison
See exactly how much you reduced your PDF file size before downloading.
Batch compression
Compress multiple PDF files at once. All free, no limits, no watermarks.
Frequently Asked Questions About PDF Compression
How do I compress a PDF file online for free?
Drop your PDF file on AngelPDF, adjust the quality slider to your preferred size, and click Download. You can compress PDF online instantly in your browser — no upload, no signup, completely free. AngelPDF is a powerful PDF compressor that works on any device.
Can I compress PDF to a specific size like 100KB or 1MB?
Yes. You can compress PDF to 100KB, compress PDF to 200KB, or compress PDF to 1MB using the target size presets. AngelPDF will automatically adjust compression to reduce PDF file size to your exact target. Perfect to compress PDF for email or compress PDF for WhatsApp attachments.
Can I compress PDF without losing quality?
Yes. AngelPDF uses smart compression to reduce PDF size while keeping text and images clear. You can compress PDF without losing quality by using the High Quality end of the slider. Our PDF compressor removes unnecessary metadata and optimizes images intelligently.
Can I bulk compress PDF files or compress PDF offline?
Yes. AngelPDF supports bulk compress PDF — drop multiple files and compress them all at once. You can also compress PDF offline since all processing happens in your browser via WebAssembly. No internet required after the page loads.
Is it safe to compress PDF without uploading?
AngelPDF is a private PDF compressor that processes files entirely in your browser. You compress PDF without uploading to any server — compress PDF locally on your own device. This makes AngelPDF the safest way to compress PDF file online.