Are my files uploaded anywhere?

No. Merging happens inside this browser tab, so the documents never leave your device. There is no upload, no queue and no copy on a server to delete afterwards.

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

There is no count limit. The practical ceiling is your own memory — a few hundred pages is comfortable on any modern phone or laptop.

Will merging change the quality of my pages?

No. Pages are copied across exactly as they are, with no re-encoding, so text stays selectable and images keep their original resolution.

Merge PDF

Drop in as many PDFs as you like, drag them into the right order, and save one document. Your files stay in this browser — nothing is uploaded.

Runs in your browser — nothing uploadednew

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How to use Merge PDF

Drop in every PDF you want combined — as many as you like, in one go.
Drag the files into the order you want. The list order is the page order.
Press Merge, then check the result and download it if you are happy.

Questions

Are my files uploaded anywhere?: No. Merging happens inside this browser tab, so the documents never leave your device. There is no upload, no queue and no copy on a server to delete afterwards.
Is there a limit on how many PDFs I can merge?: There is no count limit. The practical ceiling is your own memory — a few hundred pages is comfortable on any modern phone or laptop.
Will merging change the quality of my pages?: No. Pages are copied across exactly as they are, with no re-encoding, so text stays selectable and images keep their original resolution.

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