If you upload a password protected PDF file, you will be asked to enter the password. PDFUnlock! does not, however, recover lost or unknown passwords.
A PDF file can also be subject to encryption by a third party, such as DRM. PDFUnlock! does not remove such. Use the under given link to unlock the PDF document;
If you like to merge two or more than two PDF documents you can simple use the free and easy to use under given PDF merge online tool to do this task. It can save time and money. Use the under given link to merge the PDF documents;