How to Merge a Signed Contract With Its Annexes

The signature page is one file, Schedule A another, the exhibits a third. Before you archive or send it back, they should be one continuous PDF — in the right order, and without the signed agreement ever touching a server.

Method 1: A browser-based tool (fastest, nothing leaves your device)

Your browser can do this entirely in JavaScript — the file is read into your device's memory and the result is written back locally, with no upload in between.

Open the Merge PDF tool in your browser. No sign-up required.
Drag the signed contract and each annex onto the page.
Arrange in the sequence the agreement defines — main body, then schedules, then exhibits.
Click Merge. The combined file is built and downloaded on your device, with no upload.

Best for: executed contracts, NDAs and any signed document whose annexes must travel with it.

Trade-off: you need a connection to load the tool once; after that it runs offline.

Method 2: Tools already on your computer

macOS Preview can assemble the pages via its thumbnail sidebar and export as PDF. Windows has no native merge, so people print each file to a single PDF, which re-renders pages.

Method 3: Desktop PDF software

Desktop PDF software offers a Combine panel with preview and reordering, useful if you also need to redact or certify. It is a paid subscription for a mostly quick task.

Why keep it on your device?

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Speed

Local tools skip the upload and download round-trip, so the job finishes as fast as your device can write the result. Server tools add transfer time on both ends.

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Privacy

When the document never leaves your machine, there is no copy sitting on someone else's server afterwards — which is what matters for contracts, statements and ID scans.

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Cost

Browser tools and the software already on your OS are free. Paid desktop suites earn their price only when you need capabilities beyond the basics, such as OCR.

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Convenience

For an occasional task a bookmarked browser tool is hard to beat: no install, no login, and it works on a phone when someone emails you files while you are out.

Common questions

Is merging a signed contract safe?

Yes, if done locally. A browser merge never uploads the file, so the executed agreement and its signatures never sit on a third-party server.

Will the signatures survive?

Yes. Pages are copied without re-encoding, so digital and scanned signatures remain intact and verifiable.

What if an annex is a photo?

Convert it to PDF first with the JPG to PDF tool, then merge it in.

Can I redact before merging?

Redact the source first with the local approach in the redaction guide, then merge the cleaned pages.

How do I keep the order correct?

Add files in sequence or drag entries into place before merging; a quick check avoids merging twice.

Merge your contract in your browser

No upload · No sign-up · No watermark · Works offline once loaded

Open Merge PDF →

Also useful: Split PDF · Rotate PDF · JPG to PDF

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