Merge PDF
Combine multiple PDFs into one document, in the order you choose.
Drag & drop file(s) here, or click to browse
You can select multiple files
Information
How to use Merge PDF
Drop two or more PDFs into the upload area, drag them into the order you want, then click Merge PDF.
Why it helps
One combined file beats emailing five separate attachments — useful for assembling a report from several sources.
No installation required
Nothing to download — Merge, Split, Organize, and the rest of this group run right in your browser tab.
Your files stay private
Page order and content changes happen on this server for the length of the request only — nothing is kept afterward.
Works on any device
Works the same on a laptop, a Chromebook, or a tablet — anywhere you can open a browser and drag a file in.
Frequently asked questions
Is merging PDFs online free?
Yes, merging PDFs on PDF Toolbox is completely free with no signup or file limit.
Can I change the order of the pages before merging?
Yes — drag the uploaded files into the order you want before clicking Merge PDF; they combine in that exact order.
Will merging reduce PDF quality?
No. Pages are combined as-is, so text, images, and formatting come through exactly as they were in the source files.