Merge PDF

Combine multiple PDF documents, receipts, contracts, or presentations into a single cohesive PDF file. Review and reorder documents and merge them in seconds without uploading sensitive documents to external cloud services. Powered by pdf-lib.

How to use Merge PDF

Select multiple PDF files from your computer or drag them in.
Verify the file order in the list.
Click "Merge PDFs" to assemble the pages.
Download your merged PDF document immediately.

Frequently Asked Questions

Clear answers regarding conversion, privacy, and technical capabilities.

Are my confidential business or legal documents safe?

Yes, 100%. Unlike standard online PDF editors that store your sensitive files on remote cloud databases, our tool processes the PDF byte stream locally inside your browser memory using JavaScript. Your documents never transit our servers.

How many PDF files can I merge at once?

There is no artificial limit. You can merge 2, 5, 10, or more documents, limited only by your computer’s available memory.

Will bookmarks and forms be preserved?

The tool copies pages into a new document. Document-level bookmarks, interactive forms, attachments and digital signatures may not be preserved; keep your originals.