Compress PDF — Free & Private
Reduce PDF file size for email, web, and storage. Runs entirely in your browser — no upload required.
Drag & drop files here, or click to browse
Files are processed entirely on your device and are never uploaded to any server.
or import from URL
Frequently Asked Questions about PDF compression
How does PDF compression work?
The compressor re-encodes embedded images at a lower quality setting, reducing the overall file size. Text, fonts, and document structure are preserved.
How much can the file size be reduced?
PDFs that contain many images can typically be reduced by 40–70%. Text-only PDFs may see little reduction since their content is already compact.
Will my PDF look different after compression?
Slight image quality reduction may be visible at high compression levels. Use the quality slider to find the right balance between file size and visual quality.
Are my documents kept private?
Yes. PDF compression runs entirely in your browser — your documents never leave your device.
Can I compress multiple PDFs at once?
Currently one PDF is processed at a time to ensure the best result.