🗜️ Compress PDF Size
Reduce file size by downsampling images and optimizing structure — different levels give different results. All processing is local – your files never leave your device.
Click to Browse or Drag & Drop a PDF
Max 100MB | No upload, completely localSelect Compression Level
Low
85% quality, 95% resolution
Recommended
70% quality, 75% resolution
Extreme
50% quality, 55% resolution
| Before | After | Savings |
|---|---|---|
| 0 MB | 0 MB | 0% |
📖 How to Compress a PDF (Step by Step)
- Step 1: Click the upload area or drag & drop a PDF file (max 100MB).
- Step 2: Choose a compression level: Low (minimal size reduction), Recommended (best balance), or Extreme (maximum compression).
- Step 3: Click "Compress PDF" – the tool processes images locally (downsamples and re-encodes them).
- Step 4: Watch the live logs and progress bar; after completion, view the before/after size comparison.
- Step 5: Download the compressed PDF – your file never leaves your browser.
💡 Pro Tip: For best results, use "Recommended" for most documents. Extreme compression may lower image quality significantly. All processing happens offline.
🔒 100% client‑side • Your PDF never uploaded • Real image compression • Zero tracking