Retaining DPI/PPI Information with PNGGauntlet

I’ve mentioned PNGGauntlet many times on this blog – it’s a great tool for squeezing the best compression ratios out of the PNG format. It combines the tools PNGOUT, OptiPNG and DeflOpt in a nice WinForms GUI. As part of the compression process, most chunks are removed by default. This includes the pHYs chunk, which […]

Image Background Remover Tool

View source on GitHub. Inspired by Window Clippings, my preferred screenshot tool (which unfortunately crashes a lot under Windows 8 RTM), I wrote a small program for making image backgrounds transparent. It comes with a command-line interface and a basic GUI (pictured above). The GUI supports dragging-and-dropping images, and you can switch the black and […]

Windows Update Notification Tool for Windows 8

I was apparently part of the 5.82% of Windows 7 users who preferred to be notified about updates rather than have them installed automatically. Annoyingly, Windows 8 no longer displays the familiar balloon tip and notify icon when new updates are available, instead placing a notice on the lock screen (which I almost never have […]

Pixel-perfect Multi-DPI Images in WPF (Part 3)

View source on GitHub. In Part 1 of this series, I discussed the problem of displaying different bitmap images at different DPIs in WPF. In Part 2, I proposed a solution using multi-frame TIFFs and two simple markup extensions. In this final post I will present a basic program that takes multiple images (PNG recommended), […]