Merge PDF
Combine multiple PDF files into a single document, right in your browser.
Runs in your browser. Nothing is uploaded.PDF only · up to 100MB per file · add 2 or more to merge
Drag thumbnails to change the merge order.
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Merge PDF in 3 steps
Preparing a set of documents for a recipient? Follow the PDF package guide to check page order, readability and the final file.
Add your PDFs
Drag two or more PDF files onto the drop zone, or click it to browse. A thumbnail of each file's first page appears below.
Reorder if needed
Drag any thumbnail to change the order the files will be combined in — the final PDF follows the order shown left to right.
Merge and download
Click Merge PDFs. The combined file is built entirely in your browser and is ready to download in seconds.
Why use this Merge PDF
Questions about this tool
Is there a limit to how many PDFs I can merge?
No hard limit is built in. You can add as many PDF files as your device's memory can comfortably handle — for very large batches (dozens of large files) performance depends on your phone or computer rather than any quota we impose.
Does merging change the quality of my PDFs?
No. Merge PDF copies each page exactly as it is — text stays selectable, images keep their original resolution, and nothing is recompressed or re-rendered.
Can I merge password-protected PDFs?
Not directly — an encrypted PDF needs to be unlocked first. If a file fails to load, remove its password with a PDF reader you trust and try again.
What order will the merged pages be in?
The order you see the thumbnails in, left to right, top to bottom, is exactly the order the source files will appear in the final PDF — drag any thumbnail to move it before merging.