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Merge PDF
Select multiple PDFs, drag to reorder, then merge into one file. Nothing is uploaded — the merge happens right in your browser.
Merged locally — your files never leave your device
Is there a page or file size limit?
No hard limit is enforced, but very large files depend on your device's memory since everything is processed locally in your browser.
Are my files uploaded to a server?
No. The merge is done entirely in your browser using the pdf-lib library. Your files never leave your device.
Can I change the order of the PDFs?
Yes — drag the items in the list to reorder them before merging. The final PDF follows that order.