PDF Tools

Compress PDF

Reduce PDF file size while maintaining readable quality. Upload, compress, and download — all in your browser.

Drop a PDF file here

or click to browse — PDF files supported

Why compress PDF files online for free?

Reduce PDF file sizes without losing readable quality — all processed locally in your browser. Perfect for email attachments, uploads, and storage savings.

Multiple Compression Levels

Choose from Low (best quality), Medium (balanced), or High (smallest size) compression to match your needs.

Instant Processing

Compress PDFs in seconds. No server queues, no waiting — the compression runs directly in your browser.

100% Private

All compression happens in your browser. No PDF files are uploaded to any server — your documents stay private.

Frequently Asked Questions

How much can I reduce PDF file size?: Typical reduction is 20-60% depending on the compression level and PDF content. PDFs with many images see larger reductions.
Does compression reduce PDF quality?: High compression may reduce image quality slightly. Medium offers a good balance between size and quality.
Is there a file size limit?: There is no file size limit. The tool processes PDFs locally in your browser, so performance depends on your device.