How to Remove Password from PDF Using Android Phone?

Download and install PDF Utilities from Google Play.

 Make sure that you’ve already downloaded the PDF file from which you want to remove the password. Open the PDF Utilities app and tap Select next to Select PDF.

Once you’ve located your file, select it and tap Start. You’ll get a pop-up asking you to enter the PDF password. Enter it and tap OK.

That’s it, just go back to the same destination where the original PDF file is saved to access the new PDF file without password protection.