Author: sroot

  • Extracting images from PDF (free, using command line)

    This is a day when I love computers. I have a multipage PDF and I need to extract the images from it. Option 1: Open the PDF on screen, capture each section, save each file. No thanks, that’ll take far too long and lose quality (which already isn’t too great) Option 2: Open the PDF using…

  • Building an automatic infrared remote control for the shop

    My second Arduino based project has been to build an infrared remote control that will turn on a TV when the TV is powered up and defaults to standby mode. Here the background. I have a showroom that sells kitchens, bedrooms and bathrooms. On the second floor one of the displays has a TV that…

  • A quick review of WordPress comment and trackback spam

    One down side of running a blog has got to be the amount of comment spam.  I’m going to have to put in place better systems to stop it but before then, here’s a brief unscientific analysis of the last 23 spam comments (they all get held until I approve them) and what I think…