Compress PDF

Reduce your PDF file size without losing quality. Everything runs locally in your browser.

How to Compress a PDF

  1. 1 Upload Your PDF — Drag and drop your PDF file or click to browse.
  2. 2 Choose Compression Level — Select Low, Medium, or High compression to balance quality and file size.
  3. 3 Download Compressed PDF — Get your smaller PDF instantly. The file never leaves your browser.

Frequently Asked Questions

Is it safe to compress PDFs online?

Yes. NiftyPDF processes your files entirely in your browser. Your PDFs are never uploaded to any server — everything stays on your device.

How much can I reduce PDF file size?

File size reduction depends on your PDF content and compression level. With Low compression you can reduce file size significantly while with High compression, quality is preserved with a smaller reduction. Typical savings range from 20% to 80%.

Does compressing a PDF reduce quality?

It depends on the compression level you choose. High compression keeps the best quality with minimal visual difference. Low compression reduces file size the most but may lower image resolution. You can preview the result before downloading.

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