Compress PDF to under 100 KB
Need a PDF smaller than 100 KB? Open it here and we re-compress the images inside until it fits, while text and vector graphics stay perfectly sharp.
On-device or cloud100 KB is a tight limit, common for government and exam portals. Text-only PDFs usually fit easily; for scans, use a lower scan resolution or split the document and upload only the pages you need.
How to Compress PDF
- 1
Open the PDF you want to shrink.
- 2
Choose Low, Recommended or Extreme, or turn on a target size such as under 500 KB.
- 3
Click Compress PDF and download the smaller file.
Frequently asked questions
How do I make a PDF smaller than 100 KB?
Open the PDF, keep “Compress to a target size” on with 100 KB selected, and click Compress PDF. If it can't get under 100 KB on your device, try Strong compression.
Which PDFs shrink the most?
Scans and PDFs full of photos. Text-only PDFs are usually small already, so there's little to gain.
Will the text stay sharp?
Yes. Only images are re-compressed. Text and vector graphics are untouched.
What if it can't reach my target size?
You get the smallest version we could make and a note. For scans and very image-heavy files, choose Strong compression, which rebuilds the whole file.