How to Merge PDF Files (3 Simple Ways)

Whether you're combining chapters, attaching a cover page, or merging scans, putting multiple PDFs into one file is straightforward once you know the options.

The quickest way: a merge tool

Use a tool like the free Merge PDF tool:

1. Select two or more PDF files (up to 20).
2. They combine in the order shown.
3. Click MERGE and download the result.

Because the tool runs in your browser, the files are never uploaded — useful for sensitive documents.

Insert at a specific position

Merging always appends at the end. If you need a file inserted between pages — say, an appendix after page 3 — use Insert Pages into PDF instead and specify the position.

Manual methods

Using your operating system (macOS)

In Finder, select the PDFs, right-click and choose Quick Actions → Create PDF. Pages merge in filename order.

Using a PDF reader (Adobe, Preview)

Open the first file, drag pages from the second file into the page thumbnail panel, and save. This gives you full control but is tedious for many files.

Ordering tips

• Files merge in the order you select them — most tools let you re-add to fix the order.
• If you need a specific page sequence, merge first, then use Reorder PDF Pages.
• Scanned pages that come out blank can be removed with Remove Blank PDF Pages.

Frequently asked questions

Can I merge PDFs on a phone?

Yes — the merge tool works in mobile browsers and reads files from your device storage.

Does merging change quality?

No. Pages are copied into the new file without re-encoding.

What's the file limit?

Most browser tools allow 10–20 files per run. For more, merge in batches.

Merge your files now with the free Merge PDF tool.