PixelViewer Installation and Upgrade Guide

Installation

PixelViewer is built as portable package. You can just unzip the package and run PixelViewer executable directly without installing .NET Runtime.
PixelViewer is no longer maintained for Windows 7/8/8.1, so it may not run properly on Windows 7/8/8.1.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 "Applicaton" 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. ex, ~/.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 of ability to detect screen DPI on Linux, so you may find that UI displays too small on Hi-DPI screen. In this case you can open Application Options of PixelViewer, find User interface scale factor and change the scale factor to proper value.

Upgrade

PixelViewer checks for update periodically when you are using. It will notify you to upgrade once the update 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 the update is available or not.
 
PixelViewer supports self updating, so you just need to click Update button and wait for updating completed. If you are using PixelViewer before 1.106.0.222 on macOS, you just need to download and extract new package, override all existing files to upgrade.
 
For macOS user, you may find that application icon doesn't updated to on Dock (also in Launchpad) after upgrading to PixelViewer 3.0. Please try following the steps to refresh the icon:
  1. Run the following commands in terminal:
    touch /Applications/PixelViewer.app
    killall Finder && killall Dock
  2. Try restarting your computer if the icon is still incorrect.
Reference: Programmatically changing icons on macOS

See Also