Merge PDFs in Seconds, Not Minutes
The fastest way to combine multiple PDF files into one document. No uploads, no registration, no limits on free tier.
Join 50,000+ users who merge PDFs securely in their browser every month.
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Why 50,000+ Users Choose FastPDFMerge
The most trusted PDF merger with enterprise-grade security and lightning-fast performance.
Lightning Speed
Merge PDFs in 2-5 seconds, not minutes. Our optimized browser-based engine processes files instantly without server uploads.
100% Private & Secure
Your files never leave your device. All processing happens locally in your browser. GDPR compliant with zero data collection.
Professional Quality
Preserve original formatting, fonts, and layout. No watermarks, no quality loss, no file size limits on merged output.
Perfect for Every Use Case
- Legal Documents: Combine contracts, agreements, and legal papers
- Business Reports: Merge presentations, financial reports, and proposals
- Academic Papers: Combine research, essays, and academic documents
- Personal Use: Merge receipts, manuals, and personal documents
50,000+
Monthly Active Users
Loved by Professionals Worldwide
Join thousands who trust FastPDFMerge for their document needs
"Incredible speed! I merge dozens of legal documents daily and FastPDFMerge saves me hours every week. The fact that files never leave my computer gives me peace of mind with confidential documents."
"As a project manager, I constantly need to combine reports and presentations. This tool is lightning fast and the quality is perfect. No more waiting for slow online tools!"
"Perfect for academic work! I merge research papers, thesis chapters, and references weekly. Clean interface, no watermarks, and works offline - exactly what I needed."
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Ready to Merge Your PDFs in Seconds?
Join 50,000+ users who trust FastPDFMerge for fast, secure PDF merging
FAQ
Frequently Asked Questions
Yes! FastPDFMerge offers a generous free tier that allows 1 PDF merge per day with files up to 10MB each. No watermarks, no hidden fees - completely free forever.
For unlimited merging and larger files (up to 100MB), upgrade to our Pro plan for just $9/month.
Absolutely! Your security is our top priority. All PDF merging happens locally in your browser - your files never leave your device or get uploaded to our servers.
This means we can't see your documents, there's no risk of data breaches affecting your files, and you're 100% GDPR compliant by design.
FastPDFMerge currently supports PDF files only. You can merge multiple PDF documents into a single file while preserving original formatting, fonts, and layout quality.
Support for additional formats (Word, PowerPoint, Images) is coming soon!
PDF merging typically takes 2-5 seconds depending on file size and number of documents. Our browser-based processing is up to 10x faster than traditional online tools because there's no upload or download time - everything happens instantly on your device.
Free users: Up to 10 files per merge, 10MB per file
Pro users: Up to 50 files per merge, 100MB per file
Unlike other tools, we don't artificially limit file sizes for processing power - the limits are only for fair usage and server costs.
Yes! Once the page loads, FastPDFMerge works completely offline since all processing happens in your browser. You can even bookmark the page and use it without an internet connection. This makes it perfect for secure environments or when traveling.
No account required for basic merging! You can start merging PDFs immediately.
Creating a free account gives you access to usage tracking, merge history, and the ability to upgrade to Pro for unlimited features.
Yes! We offer a 30-day money-back guarantee for Pro subscriptions. If you're not completely satisfied, contact us at support@fastpdfmerge.com for a full refund.