Compress PDF Online
Make your PDF files smaller without sacrificing quality. This free online compressor processes your documents directly in your browser using advanced compression algorithms. Unlike cloud-based alternatives, your files never leave your device — there is no upload, no server involved, and no registration needed. Whether you need to reduce a 10MB presentation for email or compress a 50MB report for archiving, PDFHush handles it privately and securely. The compression is lossless, meaning all text, vectors, and images retain their original clarity. Perfect for students, professionals, and anyone who values both file size and document quality. Works on any device — desktop, tablet, or mobile — and supports PDFs of any size.
Frequently Asked Questions
- Is my PDF uploaded to a server?
- No. All compression runs locally in your browser. Your files never leave your device.
- How much can I compress a PDF?
- Typically 10–30% for text-based PDFs. Results vary depending on content type.
- Will quality be affected?
- No. The current compression is lossless — text and vectors are preserved exactly.
- Is there a file size limit?
- No hard limit. Very large files may be slower depending on your device.
- Can I compress multiple PDFs?
- Currently one at a time. Batch processing is coming soon.