PDF Merge
Combine multiple PDF files into one, in the order you choose — processed entirely in your browser using pdf-lib, no upload required.
Your file never leaves your device — there's no upload step at all. You can verify it: open your browser's DevTools → Network tab and watch as you use the tool. Zero file uploads.
Chatbots can't combine files they can't open. Your PDFs merge right here — zero upload.

How this works
Use the tool locally, download the result, and contact VNG only when this needs to become a repeatable workflow.
From the guides
Combining notes into one file? The Students hub has evidence-based methods for actually learning them.
Need this at scale — or something custom?
This tool runs entirely in your browser — that's the same privacy-first engineering we build for companies: dashboards, AI automation, data pipelines, and client platforms. One person, senior work, fast turnaround.
— Amit, VritantaNextGen · replies within 24 hours