SteveTheKiller/KillerPDF C#
Free and 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 a subscription. Install or run portable. GPLv3
Why It Is Worth Watching
SteveTheKiller/KillerPDF is worth watching as a C# project with 2,832 stars and 175 forks. Its main tags include dotnet, fast, gplv3, opensource. The project description says: "Free and open-source PDF editor for Windows. View, annotate, OCR, merge, split, edit text, draw, sign, fill forms, print, flatten, and open…". It was last updated on 2026-07-03. Compared with the previous snapshot, it gained about 43 stars. It is a useful candidate for developers who are comparing tools, tracking open-source trends, or looking for practical examples in this area. Before adopting it, review the README examples, integration cost, license, issue activity, and release cadence.
📈 Trend History (10 points)
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