🗂️ PDF Tools

Merge PDF

Drop in several PDFs, reorder them, and combine them into a single PDF. Loading and merging both happen entirely in your browser, so you can handle confidential documents and contracts without ever uploading them to a server.

Drag and drop PDFs, or click to choose

Select several at once. PDFs are processed on your device only and never leave it.

How to merge PDFs

Load your PDFs, reorder them if needed, and press "Merge and download PDF". Everything is processed on your device, so your files are never sent anywhere.

  • Load PDFs: drag and drop them onto the box, or click to choose. You can pick several at once and add more later.
  • Reorder: the list is merged from top to bottom. Use "↑" / "↓" on each row to move a file, and "Remove" to drop one.
  • Merge and download: press the button to combine everything into one PDF (saved as merged.pdf).

Handy for

  • Combining separate quotes, invoices and receipts into a single file to submit
  • Joining scanned pages or per-chapter PDFs back into one document in the right order
  • Handling contracts or confidential material you would rather not upload to an online merge service
  • Combining PDFs with just a browser, even with no internet connection

Merging simply concatenates the pages of each PDF. Password-protected or corrupted files may fail to load. Processing depends on your device's performance and memory, so it is best to merge very large files in smaller batches.

FAQ

Are my PDFs sent to a server?
No. Loading and merging both happen entirely in your browser (on your device), and your PDFs are never transmitted to or stored on any server. You can merge confidential documents and contracts without uploading them. Once the page has loaded it even works offline.
How do I set the page (file) order?
The PDFs you add appear in a list and are merged from top to bottom. Use each file's up and down buttons to reorder them and Remove to drop one. The merged PDF follows the list order exactly.
How many files or how large can I merge?
Because everything is processed in your device's memory, a reasonable amount (roughly a few dozen files totaling tens of MB) works without trouble. Merging extremely large PDFs with many pages, or hundreds of files at once, can strain the browser; in that case, merge them in a few smaller batches.