Free PDF Merger
Merge multiple PDF files into one document online for free. Drag to reorder, combine in seconds, and download — your files never leave your browser.
Drop PDF files here or click to browse
Add two or more PDFs · reorder them · processed in your browser
The merged PDF keeps each file's pages in the order shown above — use the arrows to reorder before merging.
How to use the Free PDF Merger
- Drop two or more PDFs or click to browse.
- Reorder files with the arrows — pages merge in the order shown.
- Hit Merge PDFs and download the combined file.
Frequently Asked Questions
Is there a limit on how many PDFs I can merge?
No fixed limit, but very large files use more browser memory. If a merge feels slow, try merging a few files at a time.
Does merging change my PDFs?
No. Pages are copied exactly as they are — text, images and layout stay untouched. Only the order changes, if you reorder them.
Can I merge password-protected PDFs?
No. Encrypted or password-protected PDFs cannot be opened by this tool. Remove the password first, then merge.
Why is the merged PDF bigger than the files I put in?
Merging rebuilds the document structure, which adds a small amount of overhead — so the merged file can be a little bigger than the inputs put together. Your pages themselves are unchanged. The result always shows both sizes honestly.