# KillerPDF (open-source PDF tool)

> KillerPDF is a free, open-source PDF tool for Windows. Free and open-source PDF editor for Windows with a built-in PDF 2.0 engine. It has 4,047 GitHub stars and is released under the GPL-3.0 license. Its source code is on GitHub at SteveTheKiller/KillerPDF.

KillerPDF is a free, open-source PDF editor for Windows. View, annotate, OCR, merge, split, edit text, draw, sign, fill forms, print, flatten, and open password-protected PDFs without an Adobe subscription. Choose the compact Windows installer or the self-contained portable edition. Document processing stays on your computer, with no telemetry.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/SteveTheKiller/KillerPDF |
| Platforms | Windows |
| Interface | desktop GUI |
| GitHub stars | 4,047 |
| License | GPL-3.0 (open source) |
| Replaces | n/a |
| Language | C# |
| Website | https://KillerPDF.net |
| Official | no |
| Category | PDF editors & tools |
| Latest release | v1.8.80 (Oct 5, 2026) |
| Last commit | Oct 5, 2026 |

## Install

### Chocolatey (Windows)

```sh
choco install killerpdf
```

Package page: https://community.chocolatey.org/packages/killerpdf

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