PDF Merger

Add two or more PDFs, put them in order with the up/down buttons, and merge. Each file's page count is shown so you know exactly what the combined document will contain, and the merge itself runs entirely in your browser — the files never leave your machine.

Common uses

• Combine a scanned contract with its signature page
• Assemble separate chapter exports into one document
• Bundle receipts into a single file for an expense report

Limitations

• Password-protected PDFs cannot be read and must be unlocked first.
• Very large documents are limited by your browser's memory.

Are my PDFs uploaded when I merge them?

No. The merge runs entirely in your browser with a JavaScript PDF library, so contracts, statements, and medical records are combined on your device and never transmitted or stored on a server.

Can I control the order of the merged pages?

Yes, at the file level. The listed order is the merge order — use the up and down buttons to rearrange files before merging, and each file's page count is shown so you know what the result will contain. Reordering pages within a file is the PDF Splitter's job.

Does merging PDFs reduce their quality?

No. Pages are copied into the new document as-is, without re-rendering or recompressing their content, so text stays sharp and images keep their original resolution.

Why won't my password-protected PDF merge?

An encrypted PDF cannot be opened without its password, so the tool reports it as unreadable. Open it in a PDF viewer with the password, save an unprotected copy, and merge that instead.

Is there a limit on how many PDFs I can combine?

There is no fixed file-count or page limit; the practical ceiling is your browser's memory, since every source document is held in RAM during the merge. Hundreds of pages are normally fine, but multi-hundred-megabyte scans may fail on low-memory devices.