How do I merge PDF files online?

Upload your PDF files using the drag-and-drop area or file picker. Rearrange them in your preferred order using the arrow buttons, then click 'Merge PDFs'. Your browser combines all files into a single PDF instantly. Download the result — your files never left your device.

Is it safe to merge PDFs online?

Yes. All processing happens locally in your browser using WebAssembly. Your files are never uploaded to any server. WayPDF is a privacy-first PDF toolkit that guarantees your document contents never leave your device.

Is there a file size limit?

Currently up to 100MB per file, which covers the vast majority of documents. Larger file support is on our roadmap.

Can I reorder pages before merging?

Yes. After uploading, you can rearrange files using the up and down arrow buttons. You can also select different merge order options like reverse order or alphabetical sorting.

How many PDF files can I merge at once?

You can merge as many PDF files as you need. There is no limit on the number of files, though each file must be under 100MB on the free plan.

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Merge PDF

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Merge PDF

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