Can I change the order before merging?
Yes. Use the reorder controls to arrange the selected PDFs before creating the combined file.
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Merge PDF
Combine multiple PDFs into one file in your browser.
Add PDF files to get started
Drag and drop files here, or choose from your device.
Choose a file to add it to this workspace. Files stay on this device
A practical guide
How to use Merge PDF
Choose at least two PDF files.
Arrange the files in the order you want them combined.
Merge and download the combined PDF.
How merging works
PDF64 combines the pages from each selected PDF in the order shown. Pages are copied into the new PDF rather than converted into page images. Document-level features such as bookmarks, metadata, forms or annotations may not always carry over.
Processing and device limits
Merging runs in your browser, so the PDFs stay on your device. Each input can be up to 100 MB and 2,000 pages. Very large combined documents can require substantial memory and may exceed the resources available to the browser.
Frequently asked questions
Are my PDFs uploaded?
No. Merge PDF runs locally in your browser.