Protect PDF Files

Protect and Save your PDF file easily

How to password protect a PDF file?

  • Drag and drop your PDF file in the lock PDF tool.
  • Confirm that you want to add password to PDF and click ‘lock pdf!’.
  • Select the password that you want to use to lock the pdf.
  • The encryption process would start right away.
  • Click ‘download file’ to save the encrypt PDF file for free.
How to password protect a PDF file?


Protect PDF files for freeProtect PDF files for free

The lock PDF tool is available for free. You don’t have to pay a single penny to use the add password to PDF. We provide a free facility to users to add strong encryptions to their PDF documents. You don't have to register or spend money on this tool. The protect PDF tool is free and would always be this way.

Lock PDF with 100% privacyLock PDF with 100% Privacy

Our lock PDF tool does not only encrypt PDF files free of cost but it also focuses on securing data shared by users. The PDF files you provide as input are not saved by our tool. After you download the lock PDF file, it is deleted from our database. We do not keep any kind of data given by a user.

Easy uploading of files from various locationsUpload Files Easily by multiple Locations

Our lock PDF tool can cater inputs from different locations. You can unlock pdf files stored in your local drive, Google drive and even in your dropbox. You can make password protection easier by using the merge pdf option. USers can lock combined files with a strong password.

Encrypt PDF on all devicesEncrypt PDF on all devices

The password protect PDF tool is based online. You can use the tool on any device you want as long as you have a browser. The tool can work on every device and operating system as long as it has a stable connection. You can lock as well as unlock pdf in case you forget the password.



Protecting PDF files is quite easy with our tool. Users just have to upload PDF files and the rest would be handled by us. We would secure a PDF with a strong password. The encrypted PDF file would be provided to the user along with the password we have set. It hardly takes a few seconds to PDF password protect online with us!

Our PDF password protect online tool does not need any registration or installation. The lock pdf tool is based online and can be used on all browsers without any registrations. Users have to simply open the lock pdf tool and add password to pdf files.

Yes! The password protect pdf tool works on every device having a browser on it. There is no limitation on which device you can use it on. You can lock PDF files whenever and wherever you want as long as you have a browser on your device.

It is quite normal for users to forget the password of their files. If you have used our lock pdf tool to add encryptions to a document and have later on forgotten it then you can try the unlock PDF utility. You just need to confirm that the PDF file belongs to you and we can retrieve the lock pdf file free.