Compress PDF
Shrink a PDF's file size in seconds — free and instant.
cloud_upload
Click or drag & drop a PDF file here
Single PDF file, up to 30MB
About Compress PDF
This free Compress PDF tool reduces file size by optimizing every page, entirely in your browser. Pick a compression level, compare the before/after size, and download — no software or account needed.
How To Use Compress PDF
- Upload a PDF using the box above or drag & drop it in.
- Choose Low, Medium, or High compression.
- Click "Compress PDF" and download the smaller file.
Benefits
- Three compression levels to balance size and quality.
- Before/after file size comparison.
- Runs fully in your browser — nothing is uploaded to a server.
- Free, unlimited use with no watermark.
Frequently Asked Questions
How much smaller will my PDF get? add
It depends on the content — PDFs with lots of images or scanned pages shrink the most. Try "High compression" for the smallest file size.
Will the text still be selectable afterwards? add
No — to guarantee a real reduction in file size, every page is converted into an optimized image. If you need to keep selectable text, this tool isn't the right fit for that specific need.
Is my PDF uploaded to a server? add
No, the entire process runs locally in your browser — your file never leaves your device.
What if my PDF is password protected? add
You'll be asked to enter the password before compressing.