Getting a set of PDFs into one file is one of the most common document chores: combining a signed contract with its appendix, stitching together chapters, or bundling a batch of invoices for filing. This guide shows how to merge PDFs in the right order, keep everything at full quality, and do it privately without uploading a thing.
TL;DR — Open the free merge PDF tool, drop in your files, drag them into order, and download one combined PDF. It runs in your browser — nothing is uploaded.
When you’d merge PDFs
- Contracts + appendices — join the agreement, exhibits and signature pages into one document.
- Reports — combine a cover, body and data appendix into a single deliverable.
- Scans — merge separately scanned pages into one file before sending.
- Invoices and receipts — bundle a month of paperwork into one PDF for accounting.
Get the order right first
In a merged PDF, sequence is everything. Before you export:
- Add all the files you want to combine.
- Reorder them — the tool numbers each file and lets you move it up or down.
- Remove anything you added by mistake.
The files are merged top-to-bottom in the order shown, so a quick check here saves redoing it later.
Step by step: combine PDFs into one
- Open the merge PDF tool.
- Drop in your PDFs — add as many as you like.
- Drag them into order and remove any extras.
- Click merge and download your single combined file.
Everything runs on your device, so confidential contracts and records stay private — nothing is uploaded, and there’s no sign-up or watermark.
Keep the merged file manageable
A merged PDF is only as light as its parts. If the result is heavy:
- Compress the final file to shrink scanned or image-heavy pages.
- Merge only the pages you need by splitting each source first.
Where to go next
- Split a PDF — pull out or drop pages before or after merging.
- Compress a PDF — shrink the combined file for email.
- Password-protect a PDF — lock the finished document.