PDF Merger is a free online tool for combining multiple PDF files into a single document. Drag-and-drop to reorder, preview thumbnails, and download the merged result. All processing runs locally in your browser.
What is the PDF Merger?
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.
How to Merge PDFs
- 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.