I am facing a problem with my own PDF file which has been restricted. I am not able to edit or print and it is an essential database. Please suggest how I can unlock PDF files without any data loss!
Granted, you won't be unlocking the file itself per se, but you can generate an unlocked equivalent that can be edited and manipulated to your heart's content. First, open the document that you wish to unlock in Adobe Acrobat Reader and click File and then Print. Next, in the printers list, select "Microsoft XPS Document Writer" and then click Print.
If you try to use Adobe's PDF printer driver, it will detect that you are attempting to export a secured PDF to a fresh file and it will refuse to continue. Even third-party PDF print drivers tend to choke on such files. However, by using the XPS Document Writer, you effectively circumvent that check entirely, leaving yourself with an XPS output. Now, open the newly minted XPS file you have just created and simply repeat the printing process, only this time printing to PDF format.
You're not able to print and edit this PDF file because it is locked with owner/permission password. Fortunately, owner password is pretty much easy to crack and there are so many programs designed for this purpose. Checkout this detailed guide for more information: http://www.mypdfsolutions.com/how-to-unlock-secured-pdf-file.html
Source: Personal Experience :)
You should try standalone PDF restriction remover tool. It removes all restrictions (print, copy, edit, extract, cut, etc) and owner password from pdf file without adobe acrobat or reader. Data quality and formatting retains as it is. Try the product here:
I would recommend this latest PDF password remover: http://www.mypdfsolutions.com/
It works perfectly with new version of PDF files i.e. PDF files encrypted with 256bit AES encryption (my personal experience). And, you don't need to spend 29-30 USD for this program.
If your PDF file is not confidential/sensitive and you're not much concerned about the file formatting, you can try free online services like PDFUNLOCK to unlock your secured PDF document.
You need an advance PDF unlocker tool to unlock PDF file without losing information. This tool is designed with the aid of algorithms and techniques to remove restrictions of PDF files. Visit: http://www.pdfunlockers.net/
FreeMyPDF: Unlock Restricted PDF Files
PDFUnlock!: Unlock Password Locked PDF Files Online
Is the file password locked?
Yes, probably with the owner/permission password. This step-by-step instructable explains how to remove pdf password security in three easy steps: http://www.instructables.com/id/How-to-Remove-PDF-Password-Security-PrintEditCo/
It should definitely work if your PDF file is locked with only owner password.
Try Foxit Reader http://www.foxitsoftware.com/Secure_PDF_Reader/ . Also right click on the mentioned PDF file and change file permission by giving rwx rights to everyone. See how to do it at http://www.wikihow.com/Change-File-Permissions-on-Windows-7
Do you mean it is password locked? In that case you can use a PDF password remover utility. Links are provided :