Merge PDF – Combine PDF Files Online Free
Combine multiple PDF files into one document. Upload, reorder pages, and download your merged PDF instantly.
Upload PDF Files to Merge
Drag & drop or browse files
Select 2 or more PDFs — up to 100MB each
Max file size: 100 MB
How to Use
Upload PDFs
Click or drag to add 2 or more PDF files.
Reorder Files
Drag or use arrows to arrange files in the desired order.
Download Merged PDF
Click 'Merge PDFs' and download the combined file.
Why Use Our Tool?
Unlimited Files
Merge as many PDFs as you need in a single operation.
Reorder Pages
Easily change the order of files before merging.
No Watermarks
Download clean, watermark-free merged PDFs.
100% Browser-Based
No uploads — everything runs locally in your browser.
Frequently Asked Questions
How many PDF files can I merge at once?
You can merge as many PDF files as you need. There is no limit on the number of files.
Can I change the order of pages before merging?
Yes. After uploading, use the up/down arrows to reorder files before merging.
Is my PDF data safe?
Yes. PDF merging uses pdf-lib and runs entirely in your browser. No files are sent to any server.
What is the maximum PDF file size?
Each PDF can be up to 100MB. Total merged document size depends on your browser memory.