Compress PDF
Make a PDF smaller before emailing, uploading, or sharing it. Adjust the page resolution and image quality, then let the tool re-render your pages into a leaner file. You'll see the before and after size right away — and your file never leaves your browser.
100% private. Your file is processed locally in your browser and is never uploaded to any server.
Click to browse or drag & drop
a single PDF file
Smaller settings shrink the file more, but reduce page sharpness.
Large files may take longer or fail in some browsers.
How to compress a PDF
- 1
Upload the PDF file you want to shrink.
- 2
Pick a compression preset (Low, Medium, High) or fine-tune the resolution and quality sliders.
- 3
Click "Reduce file size" and compare the before/after sizes. Download when you're happy with the result.
How it works: this tool re-renders each page as a compressed image at your chosen resolution and quality, then rebuilds the PDF. It's an honest, effective way to cut size for most documents, but results vary — text-only PDFs may not shrink much.