How do I password-protect a PDF online?

Upload your PDF, enter a password, confirm it, and download the encrypted file.

Does Scanonix store my PDF password?

No. Your password is used only to encrypt the file and is not saved.

Can I remove the password later?

Use the Unlock PDF tool with the correct password to remove protection.

Is Protect PDF a Pro feature?

Yes. PDF protection is part of Scanonix Pro security tools.

Will protecting a PDF change its content?

No. Encryption adds open-password protection without altering page content.

Protect PDF Online | Password-Protect PDF Files

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Add password protection to PDF files with Scanonix. Upload a document, set a password, and download an encrypted copy ready to share securely.

How to use

Upload the PDF you want to protect.
Enter and confirm a strong password.
Download the encrypted PDF.

Why use this tool

Share confidential reports with password protection.
Add a security layer before emailing contracts or statements.
Control who can open sensitive documents.
Pair with Unlock PDF when you need to remove protection later.

Key features

Password encryption
Password not stored by Scanonix
Works with existing PDFs
Download protected copy instantly

Frequently asked questions

How do I password-protect a PDF online?: Upload your PDF, enter a password, confirm it, and download the encrypted file.
Does Scanonix store my PDF password?: No. Your password is used only to encrypt the file and is not saved.
Can I remove the password later?: Use the Unlock PDF tool with the correct password to remove protection.
Is Protect PDF a Pro feature?: Yes. PDF protection is part of Scanonix Pro security tools.
Will protecting a PDF change its content?: No. Encryption adds open-password protection without altering page content.

Related tools

Unlock PDF OnlineUnlock password-protected PDFs online when you know the password. Remove open restrictions and download an unprotected copy with Scanonix.
Redact PDFRedact sensitive PDF content with manual area selection. Draw redaction boxes on pages — processed locally in your browser with secure hybrid rasterization.
Watermark PDFAdd text or image watermarks to PDF pages online. Customize position, rotation, opacity, size, and page range with local browser processing.
Compress PDF Without Losing QualityCompress PDF files online to reduce file size for email and uploads. Choose Light, Recommended, or Strong compression with secure server-side processing.

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Frequently asked questions

How do I password-protect a PDF online?: Upload your PDF, enter a password, confirm it, and download the encrypted file.
Does Scanonix store my PDF password?: No. Your password is used only to encrypt the file and is not saved.
Can I remove the password later?: Use the Unlock PDF tool with the correct password to remove protection.
Is Protect PDF a Pro feature?: Yes. PDF protection is part of Scanonix Pro security tools.
Will protecting a PDF change its content?: No. Encryption adds open-password protection without altering page content.

Related tools

Unlock PDF OnlineUnlock password-protected PDFs online when you know the password. Remove open restrictions and download an unprotected copy with Scanonix.

Redact PDFRedact sensitive PDF content with manual area selection. Draw redaction boxes on pages — processed locally in your browser with secure hybrid rasterization.

Watermark PDFAdd text or image watermarks to PDF pages online. Customize position, rotation, opacity, size, and page range with local browser processing.

Compress PDF Without Losing QualityCompress PDF files online to reduce file size for email and uploads. Choose Light, Recommended, or Strong compression with secure server-side processing.

Password-Protect PDF Online

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Password-Protect PDF Online