Merge PDF
Combine several PDFs into a single file. Add your PDFs, drag to order, and download — nothing is ever uploaded.
or drag & drop here
Private — nothing uploadedRuns in your browserFree · no sign-upNo watermark
How it works
Each PDF is loaded with pdf-lib, all of its pages are copied into a new document in order, and the result is saved and downloaded — all locally in your browser.
100% client-side — your files are processed in your browser and never uploaded.
Frequently asked questions
Are my files uploaded to a server?
No. The merge happens entirely in your browser using JavaScript (pdf-lib). Your files never leave your device, which makes this safe for sensitive documents.
Is there a file limit or watermark?
No watermark and no artificial limit — you're only bounded by your device's memory. Most everyday PDFs merge instantly.
In what order are they combined?
In the order they appear in the list. Remove and re-add a file to change its position.