Is my PDF uploaded to a server?

No. All merging runs locally in your browser.

How many PDFs can I merge?

There is no hard limit. You can merge as many PDFs as your device memory allows.

Will formatting be preserved?

Yes. Pages are copied exactly as they are — no re-rendering or quality loss.

Pages are merged in the order you select files. Choose files in the desired order.

Is there a file size limit?

No hard limit. Large combined files may be slower to process.

Merge PDF Online

Combine multiple PDF documents into a single organized file in seconds. This free online merger processes everything directly in your browser — no upload to external servers, no registration, and no size limits. Whether you are merging chapters of a book, combining business documents, or assembling a portfolio, PDFHush keeps your files private and secure. Simply drag and drop your PDFs in the order you want them merged, and download the combined file instantly. Each page is copied at original quality with zero re-rendering or compression. Perfect for combining scanned documents, merging research papers, or creating unified presentations. Works on any operating system — Windows, Mac, Linux — and no software installation is required. Your files never leave your device, ensuring complete confidentiality throughout the process.

✓ No server upload✓ No signup required✓ Open source✓ Unlimited file size

Frequently Asked Questions

Is my PDF uploaded to a server?: No. All merging runs locally in your browser.
How many PDFs can I merge?: There is no hard limit. You can merge as many PDFs as your device memory allows.
Will formatting be preserved?: Yes. Pages are copied exactly as they are — no re-rendering or quality loss.
Can I reorder pages?: Pages are merged in the order you select files. Choose files in the desired order.
Is there a file size limit?: No hard limit. Large combined files may be slower to process.