Password-Protect PDF
Encrypt a PDF with a password so it can't be opened without it — done entirely in your browser. The file, and your password, never leave your device.
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.
How this works
Use the tool locally, download the result, and contact VNG only when this needs to become a repeatable workflow.
How it works
- 1
Choose your PDF
Drop in the document you want to lock.
- 2
Set a password
Type it twice so there are no typos.
- 3
Download
The encrypted PDF is generated locally and downloaded.
Frequently asked questions
Is my password sent anywhere?
No. Encryption happens on your device with pdf-lib — neither the file nor the password ever leaves your browser.
What encryption is used?
Standard PDF encryption (RC4/AES per the PDF spec). It stops casual opening; for regulated data use a dedicated vault.
I forgot the password — can you recover it?
No. Because nothing is uploaded, there is no copy to recover from. Keep the password safe.
From the guides
Recipes, PC building, evidence-based study systems, and more — the VNG guide library.
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