PDF editor · Online

Password-protect any PDF. Online PDF editor.

Password-protect the PDF. Pick AES-256, AES-128 or RC4 depending on the readers you need to support.

  • 16 tools, 1 editor
  • Runs in your browser
  • No cloud upload New
How it works

Password-protect a PDF in three steps.

Real encryption, chosen by you, applied in your browser — the password never leaves your device.

  1. 01

    Open your PDF

    Drop the document that needs protecting — up to 100MB, opened in about a second.

  2. 02

    Set password and strength

    Choose the password and the algorithm: AES-256 as the modern default, AES-128 or RC4 when an older reader on the receiving end demands it.

  3. 03

    Download the encrypted file

    The encryption is applied locally, in your browser. From now on the document asks for the password before showing anything.

Use cases

What people password-protect PDFs for.

Three moments when a document needs a password — and what each one asks of the encryption.

Files that must not be uploaded

A client file covered by professional privilege, a medical report on its way to a patient, the HR records a small practice keeps. The usual online tool needs that unprotected document on its server before it can lock it. Here the encryption runs on your own machine, so the readable version never leaves the desk it was made on.

Attachments that outlive the email

You send a letting agent a passport scan, three payslips and a bank statement. The message lands in a shared inbox, gets forwarded to a colleague and sits on a laptop for years. With a password the document travels closed, and you pass the key by phone or text — through a channel the attachment never uses.

Encryption the other side can open

AES-256 is the right default, until the recipient turns out to be a council department running a document system from 2010, or a client still on an old Acrobat. Then the strongest algorithm produces a file nobody there can open. Pick AES-128, or RC4 for genuinely ancient software, and match the protection to the oldest reader in the chain.

This is the PDF standard's own encryption, applied to a copy inside your browser: the document is never uploaded and the password is never transmitted, stored or seen by us. That is also why there is no recovery — nobody here has anything to reset. Keep it in a password manager; your original file on disk stays untouched.

Toolkit

Real PDF editing.Text, images, signatures, shapes, pages and more.

Purpose-built tools sharing one document, one canvas, and one undo stack. Pick a tool, do the edit, switch — without saving, reopening or jumping between sites.

Why us

Why choose our PDF editor?The details you'll feel every day.

We made deliberate decisions where most online editors hedge — privacy, speed, price transparency, scope. Here's what that looks like in practice.


Your files are yours.

Editing runs in your browser with WebAssembly, no server round-trip. AI does process your document — securely and only to answer you — but we never publish, share or use it for training. Only what you save is synced to the cloud. The only person who sees your file is you.


Fast by design.

Most edits happen client-side in your browser, so they feel instant. When a step genuinely needs the server — heavy compression, encryption — it finishes in seconds. No polling pages, no «we'll email you when it's ready» rituals.


Free to edit. Honest about what's paid.

Editing is completely free — every tool, full quality, no watermark, no account required. The paid part is clear: to download your finished PDF you start a trial, and the plan also unlocks the cloud library. One flat monthly fee, and you cancel it yourself from your account whenever you want.


One editor, not ten websites.

Text, signatures, images, pages, shapes, search, encryption and compression share the same canvas and the same undo stack. It runs on any modern browser — iPad and Android tablets included — with no extension, no native app, no installer trap.


FAQ

Protecting PDFs, answered.

Encryption strengths, password handling, and what protection really means.

16
editing tools
14
AI agents
+100k
documents edited
100%
editor in your browser

Get started

Your PDF, your rules.Edit it, or ask the AI.

Drop a document: edit it in your browser in seconds, or let AI summarize, analyze and answer your questions.