How to Combine Multiple PDFs for Free Learn how to combine PDFs into one main file on both Windows and Mac devices.

To combine two PDFs: Open one of the PDFs in Preview. Go to View > Thumbnails to see a sidebar with page thumbnails. Select the thumbnail where you want to insert the other file.

If you have several scanned PDF documents that you want to merge or combine into a single PDF, you can do that via freeware or a few online tools.

1] Use Windows inbuilt Print feature to combine multiple images into a PDF You can combine multiple images into one PDF file using the native Print feature in Windows 11/10.

To combine two PDFs: Open one of the PDFs in Preview. Go to View > Thumbnails to see a sidebar with page thumbnails. Select the thumbnail where you want to insert the other file.