Runs locally · Zero uploads

PDF Merge

Combine multiple PDFs into one. The files stay on your device.

How it works

Combine two or more PDFs into a single document without uploading anything. Page order matches the order you select files. Works on contracts, scanned documents, e-book chapters, exported reports — anywhere you need a single PDF instead of many.

Verify it yourself. Open DevTools → Network → run a conversion. The only requests you'll see are the page assets — your file never leaves this tab.

On mobile? Downloaded files save to your Files app (iPhone/iPad) or Downloads folder (Android). On iPhone, you can also check the Downloads button in Safari's toolbar. This is how all browser downloads work — not a Bytario limitation.

FAQ

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

Practically, around 50 files or 100 MB total before browser memory becomes a concern. The API at api.bytario.com handles larger batches server-side.

What about page order?

Pages are appended in the order you drop or select the files. To reorder, drop them in the order you want them in the output.

Will my form fields stay editable?

Yes — form fields from each source PDF carry through to the merged output. If you want to lock them, run the result through our Flatten tool.

Use via API

Need to automate this? The same engine is available as a REST API at api.bytario.com.

curl https://api.bytario.com/v1/pdf/merge \
  -H "Authorization: Bearer $BYTARIO_KEY" \
  -F "[email protected]" \
  -F "[email protected]" \
  --output merged.pdf

POST /v1/pdf/merge — full docs · pricing from $9/mo