Merge PDFs

Combine multiple PDF files into one document. Reorder the file list, then merge — nothing is uploaded.

Runs in your browser. Your PDF stays on this device — nothing is uploaded for processing.

Any order

Drag files in the sequence you want before merging.

Keeps pages intact

Pages are copied, not re-rasterized.

Batch friendly

Add as many everyday PDFs as your browser can hold.

No upload

Merge runs entirely in memory.

Use the tool

PDF files

No file selected.

Select two or more PDFs to combine.

How it works

One file, still private

pdf-lib copies pages from each source into a new document in your chosen order.

Three steps