Free PDF Merger — Combine Multiple PDFs into One

Yes, you can merge PDFs of any page size. The merged document preserves the original dimensions of each page from the source files.

Our free tool supports merging up to 20 PDF files at once. For larger batches, simply merge in multiple rounds.

Yes, you can drag and drop to reorder the PDF files before merging. The final document follows your specified order.

1. Add PDF files

Drop PDFs here or click to chooseAdd as many as you need · up to 20 files

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Add at least 2 files. Use the arrows to change the order, and the page box to keep only some pages (for example 1-3, 5).

Merged in your browser. Your files are never uploaded.

Drop two or more PDFs into the box, or click to choose them.
Put them in the right order with the arrows or by dragging a row.
Optional: type the pages to keep from a file, such as 1-3, 5 or 2-end. Leave it empty to keep every page.
Click Merge & download PDF. The combined file is saved to your device.

Yes. Each page keeps its original size and orientation, so A4, Letter and landscape pages can sit in the same file.

Up to 20 files at once. For more, merge in rounds and add the merged file to the next batch.

You can reorder files, and choose which pages to keep from each. A range written backwards, such as 5-1, adds those pages in reverse order.

Encrypted PDFs can’t be combined until the password is removed. Use our PDF Unlocker first, then add the unlocked copy.

No. Merging happens in your browser, so contracts and personal documents never leave your device.