Compress PDF Online — Free & Instant

Compress PDF files online for free. Reduce PDF size by up to 90% without losing quality. No signup. Works on any device.

🗜️Compress PDF — Free, No Signup

How to compress pdf in 4 steps

  1. Upload your PDF by clicking the upload area or dragging it in
  2. Choose a compression level: Light (best quality), Balanced (recommended), or Maximum (smallest file)
  3. Click "Compress PDF" and wait a few seconds
  4. Download your compressed PDF — typically 40–90% smaller

Why compress pdf your PDF?

Large PDF files cause problems when emailing, uploading to government portals, or sharing on WhatsApp. Compressing reduces file size without visible quality loss, making files easier to share and store.

Tips for best results

Related PDF tools

📄Merge PDFs🔧Repair PDF

Frequently asked questions

How do I compress a PDF without losing quality?+

Upload your PDF and choose "Balanced" compression. PDFKit removes hidden data and optimises images while keeping visual quality intact. Most PDFs compress by 40–80% with no visible quality loss.

Is there a file size limit for compression?+

Free plan: up to 25MB. Pro plan: up to 200MB. Pro+ and Business: up to 1GB per file.

Why is my PDF still large after compression?+

PDFs with high-resolution scans or embedded fonts can be harder to compress. Try "High" compression mode for maximum size reduction.

Is it safe to compress my PDF online?+

Yes. All files are transferred over HTTPS, stored in encrypted cloud buckets, and automatically deleted 1 hour after processing. PDFKit never reads your document content.

🔒 HTTPS encrypted🕐 Files deleted in 60 minutes🚫 Never read by humans✅ Free, no signup required