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Compress PDF

Reduce file size without noticeable quality loss.

Drop a PDF here or click to select

How to Compress a PDF

Reduce your PDF file size in seconds — no account needed, no software to install.

Step-by-step

  1. 1Click "Select PDF file" or drag and drop your PDF onto the upload area.
  2. 2Choose a compression level — Balanced works well for most files.
  3. 3Click "Compress PDF", then download your smaller file.

What does compression do?

  • Downsamples embedded images to reduce their resolution and file size.
  • Removes redundant internal data and optimises the PDF structure.
  • Small preset gives the biggest reduction; High preset preserves print quality.

Free PDF compression online

  • No signup or account required.
  • Works on any device — Windows, Mac, iPhone, or Android.
  • Compress as many PDFs as you need, completely free.

Also try

Merge PDF
Split PDF
Protect PDF
PDF to Word

Also try

Merge PDF
Split PDF
Protect PDF
PDF to Word