Merge PDF files
Pick two or more PDFs, put them in order and download a single file.
Drag the cards to change the order.
Your files are not uploaded to any server.
How to use it
- Choose the PDFs. You can select several at once or add them one by one.
- Order them by dragging the cards, or with the arrows on a phone. The number on each card is its position.
- Click Merge PDF to download the combined file.
How it works
Pages are copied without being redrawn, so they keep their quality, size, orientation and links. You can mix PDFs with different paper sizes, such as A4 and Letter.
The combined file is named after the first PDF with "_unido" at the end. Bookmarks and forms from the original PDFs may not carry over.
To reorder or delete pages afterwards, use Organize PDF on the merged file.
FAQ
How many PDFs can I merge?
As many as you like. Each file can be up to 100 MB, and the total depends on your device memory.
Can I merge a PDF with a photo?
Turn the photo into a PDF with JPG to PDF first, then merge both.
Is quality lost?
No. Pages are not compressed or redrawn.
Are the files uploaded to a server?
No. They are merged inside your browser.