Are my uploaded PDF files safe?
Yes! All merging is performed locally in your browser using WebAssembly and JavaScript. No files are uploaded to any server.
How to Use Merge PDF
Step 1: Upload Files
Select or drag and drop two or more PDF files from your computer.
Step 2: Reorder & Adjust
Drag items to arrange the exact order in which you want them to appear in the merged document.
Step 3: Download Merged PDF
Click 'Merge PDFs' to create your combined document and download it instantly.
Key Features & Capabilities
- 100% Client-side processing — your files never leave your device
- Drag-and-drop page ordering with live preview
- Preserves original quality, bookmarks, and formatting
- No account or watermarks required
Specifications & Limits
- Supported Formats: .pdf, application/pdf
- Max File Size: 50 MB
- Batch Processing: Supported
- Free Tier Limit: Batch merging up to 50MB per task
Frequently Asked Questions
Can I change the order of merged PDFs?
Yes, simply drag and drop the file cards or use the up/down arrows to reorder before merging.
Is there a limit on how many PDFs I can merge?
You can merge as many PDFs as your device memory allows. The default free limit is 50MB per batch.
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- Compress PDF — Reduce PDF document file size while maintaining crystal-clear text and image clarity.