How big can my PDFs be?

Practical limit is browser memory — typically up to a few hundred MB total. Larger needs a dedicated desktop tool.

Are encrypted PDFs supported?

We open them in ignore-encryption mode for merging. Password-protected restrictive PDFs may fail or lose features.

PDF Merge

Combine multiple PDF files into a single document — in the order you select them. Everything happens in your browser.

Select two or more PDF files. They merge in the order you pick them.

How to use PDF Merge

Pick two or more PDF files.
Order is the order you selected them — drag-select carefully.
Click Merge and Download.

What is PDF Merge?

Merging PDFs is one of the most common document tasks — combining a cover letter and résumé, stitching together a multi-source report, or consolidating receipts. This tool uses pdf-lib in your browser; your files never upload to a server.

FAQ

How big can my PDFs be?: Practical limit is browser memory — typically up to a few hundred MB total. Larger needs a dedicated desktop tool.
Are encrypted PDFs supported?: We open them in ignore-encryption mode for merging. Password-protected restrictive PDFs may fail or lose features.

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