You may still remember my previous post ‘Free PDF Unlocker’ - a simple and useful application that will remove the password and restrictions on any PDF file. Password protected PDF files prevent the user from copying and pasting or printing its contents. But this free software supports only Windows.
If you are looking for a simple, cross platform and easy way to just bypass the copying & printing restrictions of the PDF file the Free PDF Unlock Online Utility will be the best choice, you just need to upload the file to unlock. The unlocked version of the PDF will be displayed in a new browser window, opened in the default PDF application for your system.
Similarly you can use Free Excel Spreadsheet Unlock Online Utility to unlock Microsoft Excel spreadsheet passwords. Microsoft Excel allows a user to protect one or more sheets in a spreadsheet. Protected sheets cannot be modified without entering a password (chosen by the person that protected the spreadsheet). (source)
>>Free PDF Online Unlocker
>>Free Excel Spread sheet online Unlocker