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Compress a PDF

Shrink large, scanned or image-heavy PDFs.

Open in editor →Free · no sign-up · nothing uploaded

Too big to email? Compression re-encodes the pages to shrink the file, with a choice of quality levels for the size/clarity trade-off you want.

It’s most effective on scanned or image-heavy PDFs; if a file is already small vector text, the tool keeps your original rather than bloating it.

How to compress pdf

  1. 1Open the PDF in the editor.
  2. 2Open the Tools panel → “Convert & compress”.
  3. 3Pick a compression level.
  4. 4Download the smaller PDF.

Why use pidief

  • ✓ Light / balanced / strong
  • ✓ Best for scans
  • ✓ Never bloats vector PDFs
  • ✓ Everything runs in your browser — your file is never uploaded to a server.

Compress a PDF now — free

Runs in your browser. No upload, no login, no watermark.

Open in editor →

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