Killerpdf Portable Editor

KillerPDF is a 6 MB single-exe Windows PDF editor built on C#/WPF and PDFium that runs without installation or admin rights. It handles the full workflow: annotate, draw freehand, add text boxes and signatures, merge or split documents, search full-text, and print with annotations flattened. The entire thing targets .NET Framework 4.8, uses Docnet.Core for rendering, and bundles with Costura.Fody so you can drop it on a USB stick or a locked-down corporate machine. No telemetry, no accounts, no Adobe Reader bloat. If you need a PDF tool that works offline and leaves no registry footprint, this is the reference implementation.

skills.sh installs: 312
GitHub stars: 26
last updated: Jun 3, 2026

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Install

$ npx -y skills add aradotso/trending-skills --skill killerpdf-portable-editor --agent claude-code

Installs into .claude/skills of the current project.

Files

KillerPDF Portable PDF Editor Skill

Skill by ara.so — Daily 2026 Skills collection.

KillerPDF is a single-EXE (~6 MB zipped), portable Windows PDF editor for .NET Framework 4.8. It renders PDFs via PDFium (Docnet.Core), supports inline text editing, annotations, freehand drawing, highlights, signatures, merge/split, full-text search, and printing — all without Adobe, accounts, or telemetry.

What KillerPDF Does

Capability	Details
Rendering	High-quality PDFium rendering via Docnet.Core
Annotation	Text boxes, freehand draw, highlight overlays
Editing	Inline text editing with font matching
Pages	Merge multiple PDFs, split selected pages, drag-and-drop reorder
Signatures	Draw/save reusable signatures, click to place
Search	Full-text search with highlighting, drag-select to copy
Print	Annotations flattened into output
Distribution	Single EXE, no runtime, no admin rights