Whether you're combining scan pages, assembling a report, or packaging multiple documents for a client, merging PDFs is a daily task for many developers and knowledge workers. Most PDF tools require installing software or uploading files to a third-party server — both unnecessary risks.
Merge PDFs in Your Browser
The PDF Merger lets you combine any number of PDFs directly in your browser:
- Click "Add Files" or drag and drop your PDFs
- Reorder pages by dragging if needed
- Click "Merge" — the combined PDF downloads instantly
Your files never leave your device. This matters when merging confidential documents like contracts, invoices, or personal records.
Why Not Use Desktop Software?
- No install required: Works on any OS — Windows, Mac, Linux, Chromebook
- Privacy: Unlike cloud PDF tools, nothing is uploaded to a server
- Free: No watermarks, no page limits, no account required
- Offline capable: Works without internet once the page has loaded
After Merging
Once you've merged your PDFs, you might also need:
- PDF Compressor — reduce file size for email attachments
- PDF Editor — add annotations, highlights, or signatures
- PDF Password Protect — encrypt sensitive merged documents
Technical Notes
The PDF Merger uses pdf-lib, a pure JavaScript library for creating and modifying PDFs entirely in the browser. There's no server-side processing — the merged file is generated by your own browser using the original files from your disk.