Compress PDF Online – Reduce File Size for Free
Compress PDF – Reduce PDF File Size Free Online
Large PDF files are a pain to email, upload, or store. This tool compresses your PDF to a smaller size while keeping the content readable. Just upload the file, choose your compression level, and download the result. No installation needed — works directly in your browser.
How it works
Upload your PDF
Drop your PDF onto the page or choose a file from your device.
Choose compression level
Pick Low (preserve quality), Medium, or High (max reduction). For scanned PDFs try High then preview.
Download compressed file
Download and compare sizes; run OCR afterwards if you need searchable text.
Frequently asked questions
About Compress PDF
Compressing PDFs reduces file size by optimizing images and removing unnecessary metadata while keeping text readable. Use lighter compression for text-heavy documents and stronger compression for scanned image PDFs. Example: a 12‑page scanned bank statement (15 MB) can often be reduced to ~1.2–2 MB with high compression.
Updated June 2026: Added troubleshooting tips for scanned PDFs and concrete size examples.
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