Compress PDF – reduce PDF size
Shrink large scanned PDFs so they fit email and form upload limits. See before/after size instantly.
- Files never leave your device
- Instant, no waiting queue
- No watermark, no limits
How to use the Compress PDF tool
- 1
Choose a PDF.
- 2
Pick a compression level (low, recommended, extreme).
- 3
Compare sizes and download.
Reduce PDF file size for email and online forms
Government portals, job sites and email often limit uploads to 1 MB, 2 MB or 5 MB. This PDF compressor shrinks large scanned PDFs so they fit, and shows the before and after size instantly. Choose a compression level to balance file size and quality.
Use it to compress PDF to under 1 MB or 200 KB for exam forms, passport and visa applications, KYC and GST uploads.
Tips for the smallest PDF
- Scanned PDFs shrink the most because they are mostly images.
- Try a stronger level if you need a very small file, then check readability.
- Remove unnecessary pages first with Split PDF.
- Compress photos before converting with the image compressor.
Frequently asked questions
Is this tool free?
Yes, it is 100% free with no sign-up, no watermark and no daily limit.
Are my files uploaded to your server?
No. The tool runs entirely in your browser using JavaScript. Your files never leave your device, so the tool is private and works even on slow connections.
How does it compress?
Each page is re-rendered as an optimised JPEG image. This gives big savings on scanned documents and photos. Text becomes part of the image, so it is no longer selectable.
Which level should I choose?
“Recommended” keeps text readable while cutting size a lot. Use “Extreme” only when you must reach a strict upload limit.
How do I compress a PDF to under 1 MB?
Upload the PDF, choose a stronger compression level and check the new size shown. Repeat with a higher level if needed.
Will compressing a PDF reduce quality?
Images may become slightly softer at strong levels, but text normally stays readable. Preview before submitting.
Is it safe to compress confidential documents?
Yes. Compression runs in your browser and files are not uploaded.