Compress PDF
Shrink your PDF file size while keeping it readable. Choose a compression level and see the real before/after size -- everything happens in your browser, nothing is uploaded.
Drop your PDF here
or Browse files — you can also paste from your clipboard
PDF only · up to 50MB · up to 300 pages
Private • Fast • No watermark
Your PDF
Compress PDF
Choose a compression level, then compress your PDF.
PDF Ready
How it works
Upload a PDF and choose a compression level: Strong Compression favors the smallest possible file, Balanced Compression aims for a good mix of size and quality, and Quality Priority keeps more visual quality while trimming unnecessary size. We recompress the images inside your PDF and rebuild the file directly in your browser, then re-open the result to check it before offering it to you. If a PDF can't be meaningfully reduced -- which happens with text-only or already-optimized files -- we tell you honestly instead of pretending it worked.
Is my PDF uploaded to a server?
No — your PDF is compressed directly in your browser. Nothing is uploaded to a server or stored anywhere.
How much smaller will my PDF be?
It depends on the PDF. Files with many images usually shrink the most. PDFs that are mostly text may already be efficient and can’t be reduced much further — we always show the real size difference and never claim a reduction that didn’t happen.