Merge PDF Files on Windows

Windows has a great built-in PDF viewer in Microsoft Edge, but it can't combine several PDFs into one. That's why people usually end up searching for a free PDF merger for Windows, and then find desktop programs full of upsells or websites that want their files uploaded. pdfdots gives you a third option: a merger that runs inside Edge, Chrome or Firefox but processes everything locally on your PC, so it's as private as installed software without the installation.

To merge on Windows 10 or Windows 11, open this page, then drag your PDFs from File Explorer onto the drop area — you can select several at once with Ctrl or Shift. Arrange them with the up and down buttons, click Merge PDF and the finished document is saved to your Downloads folder. It also works on locked-down office computers where you're not allowed to install programs, and on older laptops, because the heavy lifting is simple page copying rather than re-rendering.

A common Windows workaround is to print documents to Microsoft Print to PDF, but that only handles one document at a time and flattens the file, so links and selectable text can suffer. Merging here keeps every page exactly as it was. If you need Word or Excel files in the mix, save them as PDF from Office first (File > Save As > PDF), then combine them all here. Afterwards you can compress the result or add page numbers without leaving the browser.

Tip: Windows sorts files alphabetically in File Explorer, so the selection order may not match the order you want in the final document. Always check the list before clicking Merge PDF and fix it with the arrows.