How to Merge PDF Files in Your Browser

The PDF Merger runs entirely inside your browser tab using your own device's processing. Your files are read into memory on your computer, combined there, and written back out as a single download. They are never sent to a server, so a contract, tax form, or medical record never leaves your machine.

This matters because PDFs often carry sensitive content. A local tool removes the usual risk of uploading a private document to an unknown server, and it also means the merge works offline once the page has loaded.

You can merge any number of PDF files into one, and you can mix in images such as JPG and PNG, which become full pages in the finished document. This is handy for stitching a scanned signature page onto a typed agreement or adding a photo of a receipt to an expense report.

Order is fully under your control. After adding files you can drag them into the sequence you want before merging, so a cover letter lands first and appendices land last without renaming anything.

Check orientation before merging. If one source is landscape and the rest are portrait, the pages will keep their own orientation, which can look inconsistent, so rotate the odd file first if you need uniform pages.

Watch file size when you include images. High-resolution photos can inflate the final PDF, so compressing images beforehand keeps the result easy to email. If a source PDF is already large, running it through a compressor first helps too.

Merging is the backbone of everyday paperwork: assembling a multi-part application, combining chapters of a report, bundling invoices for a single month, or packaging a scanned ID with a filled form. Because the order is drag-controlled, you can build the document exactly the way a reviewer expects to read it.

When you only need part of a file, split it first and then merge the piece you want, which keeps the final document focused instead of padded with pages nobody needs.