Merge PDF Files
Combine multiple PDF files into one document online for free.
Select 2-20 PDF files to merge. You can reorder them below.
How to Use Merge PDF
- 1
Upload two or more PDF files.
- 2
Drag to reorder them as needed.
- 3
Click "Merge PDFs" to combine them.
- 4
Download the merged PDF document.
Frequently Asked Questions
How many PDFs can I merge at once?▾
You can merge up to 20 PDF files at once. For more, process in batches.
Does merging affect quality?▾
No — PDF-Lib merges files without re-encoding, preserving original quality.
Are my files kept private?▾
Files are processed on our server and deleted immediately after download.
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