Compress a PDF and shrink its file size for free — no software, no signup.
Images inside the PDF are recompressed and downscaled to reduce file size. Report a bug
Images inside the PDF are recompressed and downscaled — the output is guaranteed to never be larger than what you uploaded.
Pick High for the smallest visual quality loss, Low for the smallest possible file, or Medium for a balanced default.
Optionally strip color from embedded images for scans and documents where color isn't needed — often shrinks files further.
The PDF is processed in memory and streamed straight back to you as a download — its contents aren't saved anywhere afterward.
Yes, compressing PDFs is completely free, with no account or signup required.
It depends on the file. PDFs with large photos or scanned images usually shrink the most — often 50–90% smaller. PDFs that are mostly text see little to no change, since this tool optimizes embedded images, not fonts or text.
Choosing High quality keeps images looking close to the original while still reducing file size. Low quality compresses more aggressively for the smallest possible file. The output is never larger than your original file.
Files up to 50 MB are supported.
No. Your file is processed in memory and streamed back to you as a download — its contents aren't kept on the server afterward. We do log basic upload metadata (file name and size) for diagnostics.