How to convert PDF merge with ConvertFlow
- Upload two or more PDF files.
- Reorder files if needed.
- Click Merge and download the combined PDF.
Key features
- Merge unlimited PDFs locally
- Drag-and-drop reordering
- Private browser processing
- Free with no watermarks
- Instant download
Common use cases
- Combining signed contract pages
- Merging report chapters
- Assembling scanned document batches
- Creating portfolio PDFs
Why browser-based conversion?
Traditional online converters upload your files to remote servers. That adds wait time and raises privacy concerns — especially for personal photos, contracts, and business documents. ConvertFlow uses modern browser APIs to process files locally. Your data never leaves your device, and conversions complete in seconds without queueing behind other users.
Read more about this approach in our browser-based conversion guide.