Online PDF Merger
Merge multiple PDF files into one document with reordering and page count. 100% private, all processing in your browser
Fast Merge
Local processing, no upload needed
Privacy First
Your PDFs never leave your device
Reorder Freely
Drag to adjust merge order
Page Count
Live total page count display
Click or drag files here
Batch upload supported
Start merging your PDFs
Click or drag PDF files to the area above, reorder to start merging
Frequently Asked Questions
Will PDF quality change after merging?
No. PDF merging is a lossless operation. The merged document preserves all original page content and quality without recompression or re-rendering.
Will my PDFs be uploaded to a server?
No. All merging is done locally in your browser. Your PDF files never leave your device, ensuring complete privacy protection.
What PDF formats are supported?
Supports standard PDF files for upload and merging. The merged output is also a standard PDF document, openable in any PDF reader.
Are there file size or count limits?
No fixed limit, but subject to browser memory and device performance. We recommend keeping the total size of a single merge within your device's available memory.
Can I adjust the merge order?
Yes. After uploading, use the 'Move Up' and 'Move Down' buttons to reorder each PDF in the merged document, with a live total page count.
Is this tool free to use?
Completely free. This is a pure frontend online tool - no registration required, no payment needed, just open and use.