PDF Morning
Lock PDF Online
Protect your sensitive documents with standard password encryption.
Remember your password: We never store your passwords or your documents. If lost, the encrypted file cannot be restored.
How to Password Protect a PDF
Upload File
Select your PDF file from your device or drag and drop it into the upload box.
Choose Password
Enter a secure password and confirm it to protect the document from unauthorized opening.
Download Protected PDF
Click "Protect PDF" to encrypt the document and save the protected version instantly.
Frequently Asked Questions
Can I open the locked PDF on any reader?
Yes. The protected document is universally compatible with standard PDF viewers, including Adobe Acrobat, Apple Preview, Google Chrome, and mobile PDF apps.
Can I lock PDFs on my phone?
Yes. You can protect documents directly in your mobile browser or use the PDF Morning app for Android and iOS for everyday document security on the move.
Can the password be removed later?
Yes. You can unlock the file at any time using our Unlock PDF tool or standard PDF readers as long as you provide the correct password.