How to compress pdf to 150 kb
- Select or drop your PDF.
- Click “Compress PDF” — we automatically find the best quality under 150 KB.
- Download your PDF, ready to upload or send.
Frequently asked questions
Can any PDF be compressed to 150 KB?
Most scanned and image-heavy PDFs fit easily. If a file can't reach 150 KB without becoming unreadable, we show the smallest size we could reach.
How do I keep the best quality?
Scan at 150–200 DPI instead of 600 DPI — it looks the same on screen and compresses far better.
Is my document uploaded?
No. Compression happens entirely in your browser — the file never leaves your device.