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Compress PDF – Private & Fast

Compress PDF files in your browser. Lower file size while keeping quality. Private, free, no watermark.

No uploads. No account. Free to use.

Lossy: each page becomes a JPEG. Scans and photo PDFs shrink. Text-heavy PDFs often cannot get smaller — we will not download a larger file.

Drop a PDF

Nothing is uploaded. Processing stays on this device.

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  • Files never leave your device
  • Runs entirely in your browser
  • No signup required
  • Free

What is Compress PDF – Private & Fast?

Large PDFs slow down email and uploads. Compress them using client-side techniques so the document never leaves your device.

Key features

  • Quality / size presets
  • image optimization inside PDF
  • client-side (pdf-lib / WASM where applicable)
  • no watermarks.

How to use it

  1. Drop PDF
  2. choose compression level
  3. download smaller file.

When to use it

Sensitive documents (contracts, medical, financial) should not be uploaded. Ours never are.

Frequently asked questions

Quality loss?

Controllable. Password-protected? Handle unlock first if needed. Uploaded? No.

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