1
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1answer
2k views

how to recover forgotten “owner password” of pdf file

I need to resize a pdf file to crop its surrounding white border. I can crop it using PDF-Shuffler on Ubuntu. But cant save the change, because of owner password protection. When i try to open that ...
2
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2answers
4k views

Getting into grub loader in Ubuntu Virtual Box machine

I have Ubuntu guest OS installed on Virtual Box on windows. But I have forgotten all passwords for user and root accounts. But when I try to get into grub by pressing escape at startup, nothing ...