Compress PDF: Free Online PDF Compressor
Reduce PDF size by up to 95% with our advanced PDF size reducer. Easily make PDF smaller for email or web. No uploads, no limits - 100% private.
Drag & drop PDF files
Up to 10 files, 1GB each
Up to 95% Smaller
Advanced compression achieves dramatic file size reductions while keeping your PDFs looking great.
100% Private
Your files never leave your device. All compression happens right in your browser, not on our servers.
Handle Huge Files
Compress PDFs up to 1GB that other tools can't handle. Batch process up to 10 files at once.
Best Free PDF Compressor Online
Need to compress PDF files? Our free PDF compressor online lets you reduce PDF file size by up to 95% instantly. Unlike iLovePDF or SmallPDF that upload your files to servers, our PDF size reducer processes everything in your browser - your documents never leave your device. Shrink PDF files for email, cloud storage, or web uploads with complete privacy and no daily limits.
How to Reduce PDF File Size
How to compress PDF files in 4 simple steps:
- Drop your PDF files into the upload area (up to 10 files, 1GB each)
- Choose compression mode: Maximum compression or Keep Text Selectable
- Select quality level: Web & Email, Print Quality, or Maximum Compression
- Click compress and download your smaller PDF files instantly
Reduce PDF Size to Specific Targets
Need to compress PDF to 100KB, reduce PDF size to 200KB, or hit other specific file size targets? Our PDF compressor offers precise control over your output size:
Compress PDF to 100KB
Use Maximum Compression mode with Web & Email quality for visa applications, online forms, and strict upload limits.
Reduce PDF to 200KB
Perfect for email attachments and document portals. Maintains good readability while dramatically shrinking file size.
Compress PDF to 500KB
Ideal balance of quality and size for sharing via messaging apps or uploading to websites.
Reduce PDF to 1MB
Standard target for most email services. Use Print Quality for documents you may need to print later.
Shrink PDF Files Instantly
Our PDF shrinker uses advanced compression algorithms to shrink PDF files without noticeable quality loss. Whether you need to shrink PDF online for a quick task or shrink PDF file size for an entire batch of documents, our tool handles it all. The compression happens entirely in your browser, making it the fastest way to make PDF smaller.
Make PDF Smaller for Any Use Case
- Email Attachments: Resize PDF for email to fit within 25MB limits. Most PDFs compress to under 5MB.
- Cloud Storage: Save storage space by reducing PDF document size by up to 95%.
- Website Uploads: Minimize PDF size for faster loading on websites and portals.
- Visa Applications: Use Maximum Compression mode to meet strict 100KB-500KB limits.
- Mobile Sharing: Make PDF file smaller for easy sharing via WhatsApp, Telegram, or SMS.
- Archive Storage: Reduce storage costs by compressing entire PDF libraries.
Compress PDF Without Losing Quality
Worried about quality? Our PDF compressor free tool offers multiple quality levels so you can reduce PDF size without losing quality. For documents you need to print, use "Print Quality" for minimal visual impact. For text-heavy documents like contracts or reports, choose "Keep Text Selectable" mode to preserve searchable, copyable text while still achieving significant file size reduction.
PDF Smaller vs Other PDF Compressors
| Feature | PDF Smaller | iLovePDF | SmallPDF |
|---|---|---|---|
| Price | 100% Free | $6-9/month | $12/month |
| Daily Limit | Unlimited | 2-3 tasks/hour | 2 tasks/day |
| Max File Size | 1GB | 15MB free | 5MB free |
| Privacy | No uploads | Server upload | Server upload |
| Batch Processing | 10 files free | Paid only | Paid only |
Compress PDF for Email
Most email providers limit attachments to 25MB. Our PDF compressor easily reduces PDF size for email - even large scanned documents compress to under 5MB. Use the "Web & Email" quality setting for optimal results when you need to resize PDF for email. The compressed PDF maintains readability while fitting easily within attachment limits.
Frequently Asked Questions
How do I reduce the size of a PDF file?
Upload your PDF to our compressor, select your preferred compression level (Web & Email, Print, or Maximum), and click compress. Your file is processed instantly in your browser with no uploads required.
How do I shrink a PDF file?
To shrink PDF files, simply drag and drop them into our compressor. Select "Maximum Compression" mode for the smallest possible file size, or "Keep Text Selectable" if you need to preserve searchable text. Click compress and download your shrunken PDF.
How to make a PDF smaller?
Making a PDF smaller is easy: upload your file, choose a compression level, and download the result. Our tool can make PDF files up to 95% smaller. For maximum reduction, use "Maximum Compression" mode which re-renders pages as optimized images.
How much can I compress a PDF?
Depending on the content, you can reduce PDF size by 50-95%. PDFs with images see the biggest reductions (often 90%+), while text-heavy documents compress less but still benefit from optimization.
Is this PDF compressor really free?
Yes! Our PDF size reducer is 100% free with no limits. Unlike iLovePDF or SmallPDF that limit free users to 2-3 tasks, you can compress as many PDFs as you need - no registration, no premium plans, no hidden fees, no watermarks.
How do I compress PDF to 100KB?
To reduce PDF size to 100KB, use "Maximum Compression" mode with the highest compression setting. This works best for single-page documents or PDFs with simple content. For multi-page documents, you may need to split them first or accept a slightly larger file size.
How do I resize a PDF for email?
To resize PDF for email, use our compressor with "Web & Email" quality setting. Most email providers have a 25MB limit - our tool easily reduces large PDFs to fit within email attachment limits while maintaining readability.
Can I compress PDF without losing quality?
Yes! Use "Print Quality" mode or "Keep Text Selectable" mode to compress PDF without losing quality. These modes optimize the PDF structure while preserving visual fidelity, achieving 20-50% size reduction with minimal quality impact.
Can I compress multiple PDFs at once?
Yes! Our batch compression feature lets you compress up to 10 PDF files simultaneously. Smart scheduling processes files concurrently for faster results, and you can download all as a ZIP.
What's the maximum file size I can compress?
You can compress PDF files up to 1GB each - far more than the 5-15MB limits on free tiers of iLovePDF and SmallPDF. Our advanced streaming technology handles massive files that other online compressors can't process, all without uploading to any server.