Compress PDF
Shrink a large PDF so it is easy to email or upload. Choose how much to compress and download in seconds.
Processed privately in your browser. Nothing is uploaded.
Go Pro: no ads, batch processing, larger files
Everything here is free forever. Pro just makes it faster.
About compress pdf
Large PDFs are a pain to share. This tool reduces the file size by re-encoding the pages, so you can drop a big document under an email or upload limit without splitting it up.
Everything runs inside your browser. Your file is never sent to a server, which keeps private documents private and makes the whole thing fast.
Frequently asked questions
Will compressing reduce the quality?+
A little, depending on the level you choose. The Recommended setting keeps documents looking sharp while cutting size significantly. Use Strong for the smallest file, or Light to stay closest to the original.
Is there a file size limit?+
There is no hard limit, but very large files use more of your device's memory because the work happens on your own computer rather than a server.