Add a password to your PDF files online.
Drag and drop your PDF files here
Supported format: PDF only.
Max file size: 50MB.
Batch mode: up to 10 PDF files.
All files will be protected with the same password.
Password strength: Weak
Add a simple hint to help you remember the password. Do not enter the actual password here.
Ready to protect your PDFs.
Upload one or more PDF files, enter a password, then download the protected result.
Uploading and protecting your PDF...
Please keep this page open until the download is ready.
Your PDF has been protected successfully.
Protect PDF adds an open password to your PDF file. Anyone opening the downloaded file will need the password you choose.
Keep the password somewhere safe. FlymeTools does not store your files, password, or hint.
Protect PDF is a simple online tool that helps you add a password to your PDF files. Upload your PDF, enter a password, and download a password-protected PDF file in seconds.
You can upload multiple PDF files and protect them with the same password. This is useful for securing invoices, reports, forms, contracts, and other business documents in one batch.
Your uploaded files are used only for password protection and are automatically deleted after processing. We do not store your PDF files or passwords.
Protect PDF means adding a password to a PDF file so that users need the correct password to open the document.
Yes. You can upload multiple PDF files and protect them with the same password in one batch.
No. A password hint is optional. It helps you remember the password, but you should not enter the real password as the hint.
Use a strong password with uppercase letters, lowercase letters, numbers, and symbols. Avoid short passwords, names, birthdays, or common words.
If you know the correct password, you can use an unlock PDF tool to remove it. This Protect PDF tool is designed to add password protection.