Mix two ore more PDF files and merge them taking pages alternately from each input file, in straight or reverse order. The perfect match for your single-sided scans. PDFsam Basic is free and open source and works on Windows, Mac and Linux.

Keep your PDF files safe and private. With our applications it is not necessary to upload your PDF files to any third-party service, all processing is performed locally on your computer where your files remain safe and private

Select PDF files

Drag and drop the PDF files you want to mix or click Add to add files. Tell PDFsam Basic to take pages in reverse order by selecting Reverse and set how many pages PDFsam Basic should take from one file before it switches to the next one by changing the value in the Pace column.
You can mix only part of the selected PDF files, double click on the Page ranges cell and specify the pages or page ranges you want to mix. Pages can be specified in the form of comma separated page ranges like 2-13,17 if you want pages from 2 to 13 and page 17. You can use the syntax 20- if you want pages from page 20 to the end of the file. Encrypted PDF files show a icon on their left, click on the lock icon and supply the unlock password.

PDF selection table
Destination folder

Choose the location of the resulting PDF files.

Destination directory field
Customize file names

Special keywords can be used as placeholders in the output file names and be replaced with dynamic values during the execution. An example can be [FILENUMBER] to add an increasing counter value to the file name or [TIMESTAMP] to add the current timestamp to the file name. Right click on the field to find all the available keywords.

filename prefix field
Mix PDF files

Once all the options are properly set, click Run to start the execution. If no error occurs, the progress bar will grow until it is fully colored and a friendly ding sound will tell you that your PDF files are ready.

Run button