Lock and encrypt PDF files online with ease to protect confidential information.
How to Protect PDF Online for Free
1.
Upload your PDF file – Click the "Choose File" button or drag and drop your PDF into FILPDF.
Upload PDF file to add password protection online
2.
Set a password and restrictions – Enter the password you want to apply. Optionally, restrict editing, printing, or copying to secure your document.
Add password and set restrictions to protect PDF file
3.
Download your secured PDF – Click "Download" to save your password-protected PDF, ready for safe sharing or storage.
Download password-protected PDF with security restrictions
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Easily password protect PDF files online with FILPDF, a free tool that lets you add strong passwords, encrypt your PDFs, and restrict editing, printing, or copying. Quickly secure your PDF documents for sharing or storage, protect sensitive information, and keep your content safe. No software installation or registration is required, making it simple to password protect PDF online and protect your files on devices like Windows PCs, Mac, iPhone, iPad, Android phones and tablets from Samsung, Xiaomi, Huawei, and more.
FAQ – Password Protect PDF
How do I password protect a PDF online for free?
Upload your PDF, set a password, optionally restrict editing or printing, and download your secured PDF instantly.
Can I restrict editing or printing when protecting my PDF?
Yes, you can set restrictions like editing, printing, or copying in addition to adding a password.
Do I need to install software to password protect PDFs?
No, this tool works entirely online, so you don't need to install any software or create an account.
Is it safe to password protect PDF files online?
Yes, your files are processed securely, and no data is stored permanently on the server.
Can I password protect multiple PDF files at once?
Currently, only one PDF can be protected at a time to ensure security and accuracy.
Will adding a password affect the PDF formatting?
No, your PDF's layout, images, and formatting remain intact after adding a password.
Can I remove or change the password later?
Yes, if you know the password, you can unlock your PDF and apply a new password.
How strong is the password encryption?
Standard PDF encryption methods are used to ensure your password is secure and protects your document effectively.
Can I use this tool on Windows, Mac, iPhone, or Android?
Yes, it works fully online on all major platforms and devices.
