By default, this tool adds the PDF password directly in your browser. No upload to a remote server is required. If this feature is not supported, you will be asked whether you want to proceed with adding the password remotely.
Local mode: Encryption happens entirely in your browser; the file is not submitted to our servers.
Remote mode: Secure transfer during processing and automatic deletion after we are done.
After download, open the file to verify the password; try Adobe Acrobat Reader, Chrome, or Edge.
Pages, forms, comments, and links are preserved; flatten complex interactive forms first for best results.
Converter App does not set permissions-only restrictions; we apply open-password encryption that blocks opening without the password.
Use the Local mode for zero-upload encryption—free, fast, and no sign-up required.
Protect your PDF with an open password. Free, fast, and no sign-up.
Choose how to encrypt: Local (in your browser; no upload) or Remote (on our servers; often faster for large or complex PDFs).
Converter App uses open-password encryption only: the file cannot be opened without the password. We do not apply permissions-only restrictions.
Local encryption (in your browser): no upload, your file stays on your device. Best for sensitive documents. Very large PDFs may encrypt more slowly on older hardware.
Remote encryption (on Converter App servers): secure upload, fast processing, automatic deletion after completion. Good when speed matters or your device is underpowered.
Not sure which to choose? Use Local for maximum data locality. Choose Remote for speed on large or complex PDFs or older devices that don't support adding the password locally.
In plain English: the password is the rule; encryption is the math that enforces it.
Open-password encryption blocks access until the password is entered. Use this for privacy when sharing or storing sensitive PDFs.
Permissions-only protection allows opening but tries to limit printing, copying, or editing; Converter App does not set these permissions. If you know the open password, we can remove it. Recovery for your own files may be possible but not guaranteed with strong encryption.
Forgot the password to a protected PDF or want to remove it from an encrypted file? Our password recovery and removal tool can help. If you know the open password, Converter App can remove it quickly. If you’ve completely lost the password, the tool can attempt recovery (no guarantee of success). This process may take some time.
If you forgot the password for a file you own, recovery may be possible but is not guaranteed with strong encryption; use only on documents you are allowed to handle.