Merge PDFs
Select the PDFs, drag them together, tap the Tools key (Command on a Mac, Alt elsewhere) and drop them on Merge PDFs. PlanetOS joins them into one file. Merging several files at once is part of PlanetOS Pro.
How it works
- 1
Select the PDFs in the order you want them, and start dragging.
- 2
Tap Command (Mac) or Alt (Windows, Linux).
- 3
Drop them on Merge PDFs. The combined PDF is saved next to the first file.

Page tools
- Organize pages… shows every page as a thumbnail so you can reorder or delete them.
- Split pages saves each page as its own PDF.
- Rotate pages turns sideways scans upright.
- For images, Combine into PDF makes one PDF out of several pictures.
PlanetOS does all of this on your computer. Your files are never uploaded, and it works without an internet connection.
Questions
Is merging PDFs free?
Working with several files at once needs Pro ($9.99 once). Organizing, splitting and rotating a single PDF works in the free version.
Are bookmarks and links kept?
The pages are combined as they are. Links on the pages keep working.