PDFPDF

Merge PDF Files into a Single Document

This PDF merger handles everything from two-page contracts to 20-chapter books. Upload, arrange, merge — and your combined PDF is ready to download in moments. No software, no fees, no fuss.

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Why Use This Tool?

Merge 2 to 20 PDF files in one go
Up/down arrows and drag-and-drop to reorder
Supports large multi-page PDFs
100% lossless — no content changes
No signup or credit card needed
100% browser-based for maximum privacy

How to Merge PDF Files into a Single Document

1

Upload PDFs

Drag and drop or click to select the PDF files you want to combine.

2

Arrange Order

Reorder your files using the drag handles. The first file will be the first pages in the output.

3

Merge & Download

Click 'Merge' and download your combined PDF instantly.

Frequently Asked Questions

Bookmarks from individual PDFs are carried into the merged document, though nested bookmark hierarchies may be flattened.

Password-locked PDFs cannot be merged. Please remove the protection first, then merge normally.

Use Split PDF to extract the specific pages you need from each file, then use this merger to combine those page-specific PDFs.

No — practical limits depend on your device RAM. Most modern devices handle merged files up to 500 MB without issue.

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