Compress PDF to 100 KB
This page opens the PDF compressor with the Strong level preselected for a 100 KB target. Add your PDF, tap Compress PDF and download — it all runs in your browser. 100 KB is a tight limit. Use it when your form or inbox states that size.
Drop files here, or tap to pick
One PDF · up to 100 MB · processed on your device · nothing is uploaded
Preset sizes
Other sizes
How to use the compress pdf
- Open this page. The PDF compressor opens with the Strong level already selected.
- Add your PDF. Drop or select the PDF you want to compress. A new file replaces the current one.
- Check the level. Strong is 72 DPI — the smallest file. Medium and Light stay closer to the original quality.
- Compress the PDF. Tap Compress PDF and wait — every page is re-saved as an image on your device.
- Download the result. Save the smaller PDF. If it is already small, the original is kept.
Frequently asked questions
Can I get a PDF under 100 KB?
Often, but not always. The Strong level shrinks the pages; check the new size shown. Long or image-heavy PDFs may stay above 100 KB, in which case split the file or remove pages.
What happens if the PDF doesn't get smaller?
If compression cannot reduce the file, the original is kept. Try a stronger level, or split the PDF into parts.
Do my files leave my device?
No. The PDF is processed in your browser and nothing is uploaded.