Add the PDFs you want to join, drag them into the order you need, and download a single combined document. Page content is copied across intact — no re-rendering, no quality loss.
Merging happens locally, which matters when you are combining things like signed contracts, bank statements or patient records: the documents are never transmitted anywhere.
The merged file keeps each source document’s original page sizes, so mixing an A4 report with a Letter-size scan produces a document with both, rather than stretching either one.
How to use it
Add the PDFs you want to combine.
Drag them into the order you want, or use the arrow buttons on a phone.
Press Merge and download the single combined document.
Supported formats and limits
Input
Two or more PDFs
Output
One combined PDF
Quality
Lossless — pages are copied, not re-rendered
Where it runs
In your browser; nothing uploaded
Not for: Very large batches on a low-memory phone — merge in smaller groups if it runs out of room.
Frequently asked questions
Are my files uploaded to a server?
No. This conversion runs entirely inside your browser using your own device’s processing power. The file never leaves your computer or phone, which is why it also works when your connection drops.
Is there a limit on how many PDFs I can merge?
There is no fixed cap. The practical limit is your device’s memory — very large documents on an older phone may run out of room, in which case merge in batches.
Does merging reduce quality?
No. Pages are copied as-is into the new document, so the output is identical in quality to the inputs.