PDF Merge
Combine multiple PDF files into a single PDF document. Upload your PDFs, reorder them if needed, then click Merge. Everything happens in your browser — your files never leave your device.
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Drop PDF files here or click to browse
Select 2 or more PDF files
How PDF Merge Works
📂 Upload PDFs
Select two or more PDF files from your device. Files are loaded into browser memory.
↕️ Reorder
Use arrows to set the order. The first file becomes the first pages of the merged document.
🔗 Merge
PDF-lib copies all pages from each file into one merged document in order.
🔒 100% Private
Everything runs locally. No files uploaded. Works offline after the page loads.