Catal Tools
server processing

Merge PDF files

Combine multiple PDFs in your chosen order into one private download.

Private processing · automatic deletion · no account required

How it works

Select at least two PDF files in the order they should appear. The server validates each document, combines its pages with qpdf in an isolated worker, checks the resulting PDF, and deletes all files automatically after the displayed retention period. Encrypted or malformed PDFs are rejected safely.