Merge PDF in your browser
Got a contract in three parts, a stack of invoices, or a scanned packet that came through as separate files? Drop them in, put them in the right order, and combine them into one PDF. The whole job runs on your own device, so nothing gets sent to a server.
- Your files stay on your computer or phone. Nothing is uploaded.
- Drag files into any order before you combine them.
- Pages keep their original size, sharp text, and images.
- Combine up to 100 MiB of PDFs. No account, no watermark.
How to use Merge PDF
- Add two or more PDF files (drag and drop works too).
- Use the up and down arrows to put the files in the order you want.
- Click Merge PDFs and download your combined file.
Technical notes & limits
- Up to 100 MiB of combined input per job, with a 120-second processing limit.
- Bookmarks, form calculations, and digital signatures may not survive the merge.
Why merging on your device is safer
Most online PDF mergers upload your files to their servers first. That’s a real problem when the files are tax returns, legal agreements, medical records, or internal reports. InBrowserPDF does the merge inside a background worker in your browser, so the PDF bytes never leave your device.
Give the merged file a quick check
Merging copies the pages from each file into a brand-new PDF. Once it downloads, flip through and check the page count, orientation, and order. Because the document is rebuilt, things that live at the document level (fillable form fields, bookmarks, and digital signatures) may not carry over.
Frequently asked questions
Are my files uploaded to a server when I merge PDFs here?
No. Your PDFs are read and combined inside your browser. None of the document data is sent to any server.
Can I change the order of PDF files before merging?
Yes. After you add your files, use the up and down buttons to set the order, then merge.
Will bookmarks, form fields, and digital signatures remain intact?
The pages themselves, including text and layout, come through unchanged. Bookmarks, form scripts, and digital signatures belong to the whole document, so they aren’t guaranteed to survive. Check the merged file before you send it.