# Gowall (open-source PDF tool)

> Gowall is a free, open-source command-line PDF tool for Windows, macOS and Linux. A tool to convert a Wallpaper's color scheme / palette, OCR with VLM's Traditional & Hybrid, Image Compression,color palette extraction, image upsacling with Adversarial Networks and more image. It has 2,314 GitHub stars and is released under the MIT license.

  Overview     Installation     Contributions   Gowall started as a tool to convert an image ( specifically a wallpaper ) to any color-scheme / palette you like! It has now evolved to a swiss army knife of image prosessing offering (OCR,Image upsacling,image compression and a lot more)

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/Achno/gowall |
| Platforms | Linux, macOS, Windows |
| Interface | command line |
| GitHub stars | 2,314 |
| License | MIT (open source) |
| Replaces | n/a |
| Language | Go |
| Website | https://achno.github.io/gowall-docs/ |
| Official | no |
| Category | PDF editors & tools |
| Latest release | v0.2.4 (Apr 9, 2026) |
| Last commit | Oct 7, 2026 |

## Install

### Homebrew (macOS)

```sh
brew install gowall
```

Package page: https://formulae.brew.sh/formula/gowall

### AUR (Arch Linux)

Package page: https://aur.archlinux.org/packages/gowall

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