123024.com · PDF Merge
Combine multiple PDF files into a single document directly in your browser. Upload your PDFs, drag to reorder, toggle individual files on or off, and download the merged result. No data is uploaded to any server — all processing uses the pdf-lib library.
Combine multiple PDF files into a single document directly in your browser. Upload your PDFs, drag to reorder, toggle individual files on or off, and download the merged result. No data is uploaded to any server — all processing uses the pdf-lib library.
Combine multiple reports, invoices, or contracts into a single file for easy sharing.
Merge scanned documents or printouts into one cohesive PDF.
1. Upload files — Drag and drop your PDF files or click to select them from your computer.
2. Arrange and configure — Drag to reorder files. Toggle off any files you want to exclude from the merge.
3. Merge and download — Click the Merge button to combine all enabled files into a single PDF and download it.
Is there a file size limit? No. PDF merging runs entirely in your browser, so there is no server-side file size limit. Very large files may take longer to process.
Can I reorder pages within a PDF? No. This tool merges entire PDF files in the order you arrange them. Each PDF is treated as an atomic unit — all its pages stay together.
Are my files uploaded to a server? No. All processing happens locally in your browser using the pdf-lib library. Your files never leave your device.