PDF Merger
Choose two or more PDFs, put them in the order you want, and download one combined file.
You can select several at once
How merging works
Each PDF is read directly in your browser, and its pages are copied — preserving text, images, and formatting — into a new combined document in the order you set. Nothing is uploaded anywhere; the merge happens locally and the result is handed straight to your browser's download.
Common uses
- Combining scanned pages into one document
- Assembling a report from separately-saved chapter PDFs
- Merging an invoice and its supporting documents into a single file to send
Frequently asked questions
How many PDFs can I merge at once?
There's no hard limit built into the tool — you can select as many files as you need. Very large numbers of large PDFs will simply take longer to process since everything happens in your browser's memory.
Can I change the order of pages before merging?
Yes — after selecting your files, use the ↑ and ↓ buttons next to each file to reorder them; the final merged PDF follows the order shown in the list, not the order you originally selected them in.
Will merging affect the quality of my PDFs?
No — pages are copied directly, preserving the original text, images, and formatting exactly as they were in the source files.
Is it safe to merge PDFs with sensitive information using this tool?
Yes — the merge happens entirely in your browser using JavaScript; your files are never uploaded to a server, so nothing leaves your device.