Merge PDFs

The documents are joined in the order shown. Move a file up or down, or drop it from the list, before building the result.

About this tool

Combine several PDFs into a single document. The files are listed in the order they will appear, and the order can be changed before the result is built, which matters when a cover page or an appendix has to land in the right place.

Questions

Can I merge PDFs with different page sizes?
Yes. Each page keeps its own size, so a mixed document will have pages of different dimensions. Readers and printers handle that; a print shop may prefer a consistent size.
What happens if one file cannot be read?
That file is named in the status and skipped, while the rest are merged. An encrypted PDF is the usual reason, since it cannot be parsed without its password.
Is the order the order I selected them in?
Files are taken in the order the picker returned them, which is usually the order shown in your file browser. Use the Up and Down buttons to set the order you actually want.