Protect with password

Encrypt your PDF with the same security mechanism as Adobe Acrobat and set a password to open it — all in your browser, without uploading the file anywhere.

Drag your PDF here
or click to choose

Everything is processed in your browser — the PDF and passwords never leave your computer. Keep your password safe: if you lose it, no one (including us) can recover the file's content.

How it works

1 PDFchoose the file
Protectopen password and permissions
Protected PDFopens only with the password
1

Upload your PDF

Choose the document you want to protect.

2

Set the password and permissions

Choose the password needed to open the file, and optionally restrict actions such as printing, copying text or editing.

3

Apply and download

The resulting PDF only opens with the password you set, in any PDF reader.

Frequently asked questions

What kind of encryption is used?

Protection uses standard PDF encryption (compatible with any reader), which requires the correct password before showing the document's content.

If I forget the password, can I recover the file?

No — the password isn't stored or sent anywhere (the whole process happens in your browser), so it's important to keep the password somewhere safe; without it, the protected file can't be opened.

Can I block printing only, but still let it open without a password?

Yes, printing, copying or editing permissions can be restricted independently of requiring a password to open, depending on what you need to protect.

Are my files uploaded to a server?

No. All processing happens inside your own browser — the file never leaves your computer or passes through any external server. You can confirm this by disconnecting from the internet once the page has loaded: the tool keeps working normally.

Do I need to create an account or pay anything?

No. PDFsy doesn't ask for sign-up, an account or payment — just open the page and use the tool.

Is PDFsy an alternative to iLovePDF?

Yes. PDFsy offers PDF tools equivalent to iLovePDF's — merge, convert, compress, protect and much more — available in 25 languages, with no usage limits, no need to create an account, and 100% local processing in your browser, without uploading any file to any server.