Optimize PDF
Re-save your PDF with tighter internal encoding, which usually trims a few percent from text-heavy documents. Image-heavy files often stay the same size, and the tool shows you the exact saving before you download.
Click to select PDF or drag and drop
Your file stays private - processed in your browser
Up to 20MB · No upload — processed on your device
Original size:
✓ PDF optimized successfully!
New size:
Reduced by:
How to Optimize PDF
- 1. Upload your PDF file
- 2. Choose optimization level (low, medium, or high)
- 3. Click "Optimize PDF"
- 4. Download your optimized PDF with reduced file size
Features
📉 Reduce File Size
Significantly reduce PDF file size for easier sharing and storage.
💎 Maintain Quality
Optimize without losing important content or readability.
🔒 100% Private
All processing happens locally in your browser.
⚡ Fast Processing
Optimize PDFs instantly without uploading to servers.
Frequently Asked Questions
Is my file uploaded, and what is the maximum file size?
No upload is needed. This tool runs entirely inside your browser, so your file is never sent to a server. Files of up to 20MB are supported and processed locally on your own device.
What is PDF optimization?
It rebuilds a PDF's internal structure and drops objects that are not used, which often removes leftover data from earlier edits.
Will Optimize PDF change how my document looks?
No. Pages and text are preserved exactly; only unused internal data is discarded.
What if my optimized file is bigger?
You keep your original. The tool only offers a download when the result is genuinely smaller.
Are my files uploaded?
No. The file is processed by JavaScript inside your own browser, so it is never uploaded to a server.