Loading tool…
How to Merge PDFs
The PDF Merge tool combines multiple PDF files into a single document — entirely in your browser with no server upload.
- Drag and drop or select the PDF files you want to merge.
- Reorder files by dragging them into the desired sequence.
- Click Merge and download the combined PDF.
How PDF Merging Works
PDF merging copies pages from multiple source documents into a new PDF container. Bookmarks, links, and page labels from source files are preserved. The process does not re-compress images or alter page content — the merged file is a faithful combination of the originals. File size is approximately the sum of the input files.
Why Use Our PDF Merger?
- 100% browser-based — PDFs never leave your device.
- Drag-to-reorder — arrange files before merging.
- No file limit — merge as many PDFs as you need.
- No account — merge instantly, no signup required.
Frequently Asked Questions
Is there a limit on the number of PDFs?
No hard limit. The practical limit depends on your device's memory. Most users can merge dozens of files without issues.
Are my PDFs uploaded to a server?
No. All merging happens in your browser using pdf-lib. Your files never leave your device.
Does merging reduce quality?
No. Pages are copied as-is without recompression. The merged PDF is identical in quality to the originals.
Can I rearrange pages?
You can reorder entire files before merging. For page-level rearrangement, use the PDF Split tool to extract specific pages first.