KillerPDF
Free and open-source PDF editor for Windows with a built-in PDF 2.0 engine. View, annotate, OCR, merge, split, crop, rotate, compare, edit text, draw, sign, fill forms, print, flatten, and open password-protected PDFs without a subscription.
- dotnet
- gplv3
- opensource
- pdf-editor
- portable
- windows
- wpf
- fast
- small
- csharp
- dotnet-core
- ocr
- open-source
- pdf-2-0
- Stars
- 4,131
- Forks
- 331
- + today
- +1
- Created
- 6mo
Ranking data as of October 16, 2026 (UTC).
Star History
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Overview
Free and open-source PDF editor for Windows with a built-in PDF 2.0 engine. View, annotate, OCR, merge, split, crop, rotate, compare, edit text, draw, sign, fill forms, print, flatten, and open password-protected PDFs without a subscription. It ranks #4316 on GitTiger, gaining +1 star on October 16, 2026 (UTC).
The project is written in C# and has 331 forks. It was created 6mo ago.
Installation
git clone https://github.com/SteveTheKiller/KillerPDF.git
cd KillerPDF
# see README for setup