Merge PDF Files Online
Combine multiple PDF files into a single document in the order you choose. Merging runs entirely in your browser — nothing is uploaded.
How to use
The whole flow runs in your browser — nothing is uploaded.
- Add your PDFsDrop two or more PDF files into the upload box, or browse your device.
- Set the orderReorder the list by dragging a row — pages are merged top to bottom.
- MergePress Merge PDF; every file is parsed and combined on your device.
- DownloadSave the merged document with a clear file name.
- Every step runs locally in your browser.
Key Features
Combine several PDFs into one document in your own order. Everything runs client-side on your own device.
- You control the orderDrag rows to merge in exactly the order shown.
- Unlimited files per mergeAdd as many PDFs as your device can hold in memory.
- Nothing is uploadedMerging happens with pdf-lib inside your browser.
- Original quality keptPages are copied as-is — no re-rendering, no quality loss.
Frequently asked questions
No. The files are read and rebuilt in your browser using pdf-lib. Nothing leaves your device.
Yes — drag any row in the file list, or use its arrow buttons, before pressing Merge PDF.
Page content, images and fonts are copied exactly. Interactive form fields keep their appearance but are flattened into page content, so they are no longer fillable.
There is no fixed limit — the practical limit is your device's memory. Very large PDFs may take longer to process.