Merge PDF
Drag and drop your PDF files to merge them into a single document. Reorder pages, remove unwanted files, and download your merged PDF instantly — all processed locally in your browser.
Select PDFs to merge
Drag & drop 2 or more PDF documents here, or click to browse from your device
Files are processed locally in your browser · Page order and layout are preserved
Your Privacy is Protected
PDFLab processes your files locally in your browser using modern web APIs. Your documents are never uploaded to our servers. When you close this tab, all file data is cleared from memory.
How to use Merge PDF
Upload your PDFs
Select or drag multiple PDF files into the workspace.
Reorder if needed
Drag or use arrows to order files in the sequence you want them merged.
Download your file
Click Merge and download the combined PDF instantly.
Frequently Asked Questions
You can merge up to 50 PDF files at once. Each file can be up to 100 MB.
Yes. All processing happens locally in your browser. Your files never leave your device.
No. PDFLab merges documents without recompressing content, preserving original quality and page dimensions.