Compress PDF
Reduce PDF file size while maintaining quality. Perfect for email and web sharing.
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Supported formats: .pdf
Frequently Asked Questions
Is PDF compression free?
Yes. PDF.it lets you compress PDFs for free, up to 10 times per day. No software needed beyond a free account.
Will compression reduce my PDF quality?
For most documents — reports, forms, presentations — quality is visually identical after compression. Image-heavy files may see slight reduction at higher compression levels.
How much can I reduce my PDF file size?
Results vary by content. PDFs with large images typically compress by 50–90%. Text-heavy PDFs usually compress by 20–50%.
Is my file secure when I upload it?
Yes. Files are transferred over HTTPS, processed securely, and automatically deleted after your session. We never store or share your documents.
What is the maximum file size I can compress?
Free accounts can upload files up to 25MB. Pro and Business accounts can upload up to 200MB.
Do I need to install any software?
No. PDF.it works entirely in your browser — no downloads, no plugins, no installations needed.