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Compress PDF

Reduce the size of your PDF online

How to compress a PDF
How to compress a PDF
Just drag-and-drop your PDF file in the box above, wait for the compression to complete and download your file. It's that simple.
Security guaranteed
Security guaranteed
Your files will be permanently deleted from our server after one hour. No one has access to your files and privacy is 100% guaranteed.
All platforms supported
All platforms supported
Smallpdf.com is browser-based and works for all platforms. It doesn’t matter if you use Mac, Windows or Linux.
Perfect quality
Perfect quality
Reduce your scanned PDF files to 144 dpi which is perfect for uploading files to the web and through email.
Easy to use
Easy to use
The file size limit is 5GB. Even with large PDFs, it will take a few seconds for our compression tool to work its magic.
In the cloud
In the cloud
All the file compressing takes place in the cloud and will not consume any capacity from your own computer.
How to reduce a PDF size online

How to reduce a PDF size online:

  1. To start, upload your file to our PDF compressor.
  2. Our tool will automatically start to shrink the file.
  3. Continue to modify your PDF document if needed.
  4. Download the compressed PDF file to your computer.
Rate this tool
4.6 / 5 - 180,221 votes