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Merge PDF
Combine several PDFs into one file, in exactly the order you want.
Choose a fileLoading the tool…
Join contracts, reports, scans or chapters into a single PDF. Add as many files as you like, arrange them in the order you want, and download one tidy document.
How to merge PDF files
- Choose or drop two or more PDF files.
- Drag the files (or use the arrows) to set their order.
- Click “Merge PDF” and download the combined file.
Frequently asked questions
How many PDFs can I merge at once?
There is no fixed limit. The practical limit is your device’s memory, and dozens of typical documents merge without trouble.
Will merging reduce quality?
No. Pages are copied as they are, so text, images and vector graphics stay exactly the same.
Are my files uploaded to a server?
No. ModifyPDF processes files with JavaScript inside your browser. Your documents never leave your device, and nothing is stored after you close the page.