Merge PDF Files
Combine multiple PDF documents into one file in your browser — nothing is uploaded to our servers.
Select PDF Files
or click to browse your documents
Validated Uploads
Each file is validated as PDF with clear limits and structured error handling.
In-browser merge
pdf-lib runs locally so files stay on your device and the Worker never processes uploads.
Why Merge PDFs?
Combine reports, invoices, or contracts into one clean file for faster sharing and simpler document management.
Safer Processing
The merge pipeline validates each file and rejects invalid or encrypted uploads with clear messages.
Exact Ordering
The output PDF follows your selected sequence exactly, page-for-page.
About PDF Merge Tool
Merge multiple PDF files in your browser. Upload your documents, preserve ordering, and download one unified PDF — no server upload.
How to Use
- 1Add two or more PDF files to the queue.
- 2Review the file order in the selected list.
- 3Click Merge PDF Now to combine locally.
- 4Download the merged PDF once processing completes.
Key Benefits
- Private client-side merging — files never leave your device.
- PDF validation and clear error messages.
- Exact page order preservation across input files.
- Quick output for sharing and archival workflows.
Frequently Asked Questions
You can merge multiple files in one request. Keep the total upload size reasonable for best performance.
The merged output follows the exact order shown in your selected list.
Not directly. Please unlock protected PDFs before uploading them for merging.
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