PDFs & Documents · PDF Merge
Combine PDF files into one on your computer
Quick answer
Open Toolfox → PDF Merge, drop two or more PDFs, drag them into order and click Merge. Pages are copied without re-encoding and the result is verified by macOS's PDF engine before it's saved. It runs entirely on your computer (Mac, Windows or Linux). Files are never uploaded.
How to do it
- Open PDF Merge and drop your PDFs.
- Drag them into the order you want (or press ⌥↑ / ⌥↓).
- Name the result.
- Click Merge PDFs. The merged file is verified, then saved.
Options you can set
- PDF name
Good to know
- Page content is copied without re-encoding.
- Bookmarks, fillable form fields and document properties aren't carried over.
- Password-protected PDFs can't be merged.
PDF Merge FAQ
Is there a page or file-size limit?
No artificial limits. Up to 200 PDFs per merge, each up to 2 GB.
Can I merge password-protected PDFs?
No. Toolfox detects protected PDFs and tells you, rather than removing protection.
Is PDF Merge in Toolfox free?
Yes. PDF Merge is one of 57 tools in Toolfox, a free app for Mac, Windows and Linux with no account, ads, limits or watermarks.
Does PDF Merge upload my files?
No. Toolfox processes files on your own computer and works offline; your files are never uploaded.
More pdfs & documents tools in Toolfox
Get PDF Merge and 19 more tools.
Free forever. No account. Works offline. For macOS, Windows and Linux.
Updated 2026-10-18 · Toolfox v0.2.1