Help Center
Find answers to common questions, step-by-step guides, and troubleshooting tips for using PDFDrive's free PDF tools.
Quick Start Guides
How to Compress PDF
Reduce your PDF file size while maintaining quality
How to Merge PDFs
Combine multiple PDF files into one document
How to Split PDF
Extract individual pages from your PDF
Common Issues & Solutions
Tool not loading or working
Try refreshing the page or using a different browser. Ensure JavaScript is enabled.
File upload fails
Check that your file is a valid PDF and under 50MB. Try a different browser.
Download not starting
Check your browser's download settings and disable popup blockers for our site.
Processing takes too long
Large files take more time. For files over 20MB, consider using a desktop computer.
System Requirements
Browsers
- Chrome 80+ (Recommended)
- Firefox 75+
- Safari 13+
- Edge 80+
Mobile Devices
- iOS Safari 13+
- Android Chrome 80+
- Samsung Internet 10+
- Firefox Mobile 75+
Connection
- Stable internet connection
- JavaScript enabled
- Local storage available
- No proxy restrictions
Security & Privacy
Your Data is Safe
- All processing happens locally in your browser
- No files are uploaded to our servers
- No personal information is collected
- Works offline once loaded
How It Works
Our tools use modern web technologies to process PDFs directly in your browser. This means your files never leave your device.
When you upload a file, it's loaded into your browser's memory and processed using JavaScript libraries. The result is then made available for download.
This approach ensures maximum privacy and security while providing fast, professional-grade PDF processing.
File Limitations
📁 File Size Limits
- • Maximum file size: 50MB per file
- • Recommended: Under 20MB for faster processing
- • Multiple files: Total size under 100MB
📄 Supported Formats
- • PDF files (all versions)
- • Password-protected PDFs (some tools)
- • Multi-page documents
- • Scanned PDFs (limited)