Regular PDF files can be viewed by the PDF reader applications and allow people to print, copy the content or convert text to other editable files. You would find some PDFs can be accessed like regular PDFs, but you cannot print them or select and copy the text while reading. These secured PDFs which were added permissions and restrictions by document creators. PDF Unlocker Online is a free online tool designed to remove protections from PDFs. PDF Unlocker Online usually unlocks a secured PDF file in only 2-3 seconds normally (it may take more time if the PDF file size is larger than 10 MB), because it runs on the Browser locally and we have already optimized the decryption speed to the best. Select a PDF file, Unlock, then Save it. So easy!