Compress PDF Online Free
Reduce PDF file size online. Perfect for email attachments and uploads.
Features
100% Secure
Files are processed in your browser. Nothing is uploaded to any server.
Quality Preserved
Optimizes structure without degrading text or image quality.
Instant Results
No upload time. Compression happens immediately in your browser.
How to Compress PDF
Upload your PDF file by drag & drop or clicking to browse
Select compression options (optional: remove metadata)
Download your compressed PDF file
Frequently Asked Questions
How does PDF compression work?
Our tool optimizes the PDF structure by removing unused objects, consolidating duplicate elements, and re-encoding the document efficiently. This can reduce file size without significantly affecting quality.
Will compression affect PDF quality?
Our browser-based compression focuses on structural optimization, which typically doesn't affect visual quality. However, the compression ratio depends on the original PDF - already optimized files may not compress much further.
Why isn't my PDF getting smaller?
Some PDFs are already optimized or contain compressed images that can't be reduced further without quality loss. Professional PDF software may achieve better compression by re-encoding images at lower quality.
What does 'Remove Metadata' do?
This option removes document properties like author name, title, creation date, and keywords. This can slightly reduce file size and remove personal information from the document.
Is my PDF secure during compression?
Yes! All processing happens in your browser. Your PDF is never uploaded to any server, ensuring complete privacy and security.