Merge PDF Files Online — Free & Private
Merge multiple PDF files into one document — free and instant.
🔒 PDFs are merged in your browser using pdf-lib. Nothing is uploaded.
How to Use PDF Merger
1
Upload PDF files
2
Drag to reorder pages
3
Download merged PDF
100% Private
Your files never leave your browser
Instant Processing
No upload wait time. Results in seconds
Zero Limits
No daily limits, no file count limits
Always Free
No account, no subscription, no fees
About PDF Merger
Combining multiple PDF files into a single document is a common need — whether you're consolidating scanned receipts, merging contract pages, or assembling a report from multiple sections. Zendrove's PDF Merger uses pdf-lib to process everything in your browser with zero server involvement.
Tips for Merging PDFs
- Drag files into the order you want before merging — the output follows your sequence
- Password-protected PDFs are handled automatically when possible
- You can merge up to 20 PDFs at once — larger batches depend on device memory
- The merged output preserves original page sizes and orientations
Frequently Asked Questions
Is there a limit on how many PDFs I can merge?
No hard limit. You can merge up to 20 PDFs at once. For very large files, performance depends on your device memory.