How many PDFs can I merge?

You can combine between 2 and 20 PDFs in one job.

Can the PDFs use different page sizes?

Yes. Each imported page keeps its own size and orientation.

Does merging change the source files?

No. A new combined PDF is created.

Merge PDF

Merge PDF Files Online

Use this PDF merger and combiner to join multiple PDF files into one document. Add your PDFs, arrange them in the required order and download one combined PDF.

How to merge PDF files online

Choose between 2 and 20 PDF files.
Move files up or down to set the merge order.
Start the merge job.
Download the single combined PDF.

Supported inputs

Between 2 and 20 standard PDF files
Combined documents containing up to 500 pages
PDFs with different page sizes and orientations

Available outputs

One merged PDF
Original page dimensions and order retained
Temporary signed PDF download

Why use this tool

Visual file ordering before upload
Mixed page sizes supported
No account required
Shared PDF queue and automatic cleanup

Common problems

A PDF cannot be imported: Encrypted, password-protected, damaged, or unsupported PDFs must be repaired or unlocked with permission first.
The merged document exceeds the limit: Reduce the number of source files or pages so the final document stays within 500 pages.

Frequently asked questions

How many PDFs can I merge?: You can combine between 2 and 20 PDFs in one job.
Can the PDFs use different page sizes?: Yes. Each imported page keeps its own size and orientation.
Does merging change the source files?: No. A new combined PDF is created.

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