Merge PDF
Drag and drop multiple PDF files to merge them into a single document, in any order you choose.
Drag and drop files here
or select a file from your computer
How to Use Merge PDF
Add Your PDFs
Click "Add Files" or drag and drop multiple PDF files. You can add more files at any time.
Arrange in Order
Drag the cards to reorder your files. Use "Order Alphabetically" to sort by name. The merge order matches what you see.
Merge and Download
Click "Merge PDF" to combine all files into one document. Preview the result and download your merged PDF.
Frequently Asked Questions
No. Merging happens entirely in your browser using PDF-lib. Your files never leave your device.
There is no hard limit. You can merge as many PDFs as your browser can handle in memory.
Basic PDF content is preserved. Some advanced features like interactive forms and bookmarks may not carry over.
Yes. Drag the file cards to reorder them at any time before clicking Merge PDF.
Each page retains its original dimensions. Pages are not resized or normalized — they merge exactly as-is.