Reduce PDF File Size Free – Choose Compression Level
Reduce PDF file size free with three smart modes: Extreme Compression (smallest file, lower quality), Recommended Compression (good balance), and Less Compression (high quality, minimal size change). No watermark, no sign up, works entirely on your device – a secure compressor no upload to server. Ideal for compress pdf to 100kb online or compress pdf to 200kb free, and perfect to compress pdf for email attachment.
📦 Choose the Right Compression for Your PDF
Whether you need to compress pdf to 100kb online for strict email limits or just shrink pdf file size online without losing crisp text, our tool gives you full control. Extreme Compression drastically reduces file size by converting pages to images – perfect for visual content where text search isn't needed. Recommended Compression uses intelligent PDF optimization to cut size while keeping text selectable and quality high. Less Compression preserves original quality, ideal for printing.
📱 How to Compress PDF on iPhone / Android
⚖️ Compression Levels Explained
| Level | Method | Quality | Size Reduction | Best For |
|---|---|---|---|---|
| Extreme | Pages → Images (72 DPI, JPEG quality 0.5) | Lower | Very high | Email attachments, web sharing |
| Recommended | PDF object streams, metadata strip | Good | Moderate | Daily use, documents, balance |
| Less | Basic metadata strip, minimal re‑encoding | High | Minimal | Printing, archiving |
❓ Frequently Asked Questions
Can I compress PDF to 100KB online for free?
Yes, using Extreme Compression mode. It re‑renders pages as low‑resolution images, often bringing file sizes below 100KB for text‑light PDFs.
Does extreme compression lose text selectability?
Yes, because pages become images. Text can no longer be selected. Use Recommended or Less compression if you need to keep text editable.
How is my privacy protected?
All processing happens on your device – your files are never uploaded anywhere. This is a secure compressor no upload to server.
Is there a file size limit?
No artificial limits. You can compress extremely large PDFs (the tool may be slower with hundreds of pages, but it works).
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