PixelViewer Installation and Upgrade Guide

Installation

PixelViewer is built as portable package. You can just unzip the package and run PixelViewer executable directly.
PixelViewer is no longer maintained for Windows 7/8/8.1, so it may not run properly on Windows 7/8/8.1.

macOS User

After downloading and unzipping package, please move PixelViewer application package (PixelViewer.app) to "Applications" folder to make sure running PixelViewer without permission issues.

Linux User

If you want to run PixelViewer on Linux, please grant execution permission to PixelViewer first. If you want to create an entry on desktop, please follow the steps:
  1. Create a file (name).desktop in ~/.local/share/applications. e.g., ~/.local/share/applications/pixelviewer.desktop.
  2. Open the .desktop file and put the following content:
    [Desktop Entry]
    Name=ULogViewer
    Comment=
    Exec=(path to executable)
    Icon=(path to PixelViewer.png in PixelViewer folder)
    Terminal=false
    Type=Application
  3. After saving the file, you should see the entry shown on desktop or application list.
Reference: How can I edit/create new launcher items in Unity by hand?
 
Currently PixelViewer lacks the ability to detect screen DPI on Linux, so you may find that the UI displays too small on Hi-DPI screens. In this case you can launch PixelViewer with the -screen-scale-factor {scale-factor} argument to set the scale factor to a proper value.

Upgrade

PixelViewer checks for updates periodically while you are using it. It will notify you to upgrade once an update is found. Alternatively you can click Check for update item in the Other actions menu on the right hand side of toolbar (application menu on the top-left of screen on macOS) to check whether an update is available.
 
PixelViewer supports self updating, so you just need to click Update button and wait for the update to complete.