A
AiTechWorlds
AiTechWorlds
Combine multiple PDF files into one — reorder pages by drag, 100% in your browser, no upload.
Drag PDF files here or click to upload — add as many as you like
100% in-browser — your PDFs never leave your device. Files merge in the order shown; drag rows (or use the arrows) to reorder.
Merge PDF combines two or more PDF files into a single document directly in your browser. Add as many PDFs as you like, drag them into the order you want, and download one merged file in seconds. Because it runs entirely client-side using the pdf-lib library, your files are never uploaded to a server — even confidential documents stay completely private on your device.
Add your PDF files
Drag and drop or click to upload two or more PDF files.
Set the order
Use the up/down arrows to arrange the files in the order they should appear.
Merge and download
Click Merge to combine them and download the single PDF instantly.
100% Private — No Server Required
All processing happens directly in your browser. No data is uploaded, stored, or transmitted to any server.
Last reviewed on June 19, 2026 by the AiTechWorlds Tools Team. All processing runs locally in your browser.
Advertisement