PDF Merger

Select two or more PDF files and merge them into one PDF. Order follows your selection or on-page ordering controls.

How to use this tool

1. Add PDF files (drag-and-drop or file picker).
2. Arrange order if the UI allows.
3. Merge and download the combined PDF.

Tips

• Merge only PDFs you have rights to combine.
• For image-only sources, Image to PDF may be simpler than printing to PDF first.
• Huge files can stress memory—merge in batches on older devices if needed.

Related tools

• Image to PDF — turn images into a PDF first
• Image resizer — shrink embedded images before making PDFs elsewhere

FAQ

Are PDFs uploaded to a server?

No. pdf-lib merges locally in your browser.

Can I password-protect the result?

This merger focuses on combining files—use a desktop PDF tool for encryption if required.

What if page order is wrong?

Re-order in the UI or re-select files in the sequence you want before merging.