Monthly Archives: August 2013

How To Remove Passwords From PDF Documents Using Linux Bash

And, prompt for password. If you supply the password in the command line, it gets stored in bash history. So, we need to make the command prompt for password. To install pdftk using the command (in Ubuntu/Mint): Advertisements

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DIY Electronics: My DIY Tic Tac Mint Box Universal Cell Phone Battery Charger Built With TP4056 Lithium Charging Circuit

Totally eschewing the Altoids-Schmaltoids route. I can now charge any cell phone battery without requiring its phone or its charger. I have used alligator clips to connect to the battery. The charger circuit board has a mini USB port but … Continue reading

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