Skip to main content Início Criadores aradotso trending-skills killerpdf-portable-editor
killerpdf-portable-editor KillerPDF is a portable, single-EXE Windows PDF editor built with C#/WPF and PDFium — supports viewing, annotating, merging, splitting, signing, and printing PDFs with no installer, account, or telemetry.
Ir para a instalação Skills Marketplace Descubra e explore skills de IA criadas pela comunidade.
Instalar com Codex ou Claude Copie este prompt, cole no Codex, Claude ou outro assistente e deixe que ele revise a página da skill e instale para você.
Mostrar detalhes do prompt Um comando direto ignora o prompt de revisão. Verifique a origem antes de executá-lo.
npx skills add https://github.com/Aradotso/trending-skills --skill killerpdf-portable-editorO comando permanece em uma só linha. Role horizontalmente para revisá-lo antes de copiar.
Prefere uma cópia local? Baixe os arquivos disponíveis atualmente no SkillsMP.
Baixar Zip Baixando... Ocupações relacionadas SOC
Baseado na classificação ocupacional SOC
name killerpdf-portable-editor description KillerPDF is a portable, single-EXE Windows PDF editor built with C#/WPF and PDFium — supports viewing, annotating, merging, splitting, signing, and printing PDFs with no installer, account, or telemetry. triggers ["edit a PDF in C# WPF","portable PDF editor Windows no installer","merge split PDF dotnet wpf","annotate PDF without Adobe","KillerPDF setup and usage","add text boxes signatures to PDF C#","PDF freehand drawing highlight overlay dotnet","build KillerPDF from source"]
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
Getting the Binary # Download latest prebuilt release
Invoke-WebRequest -Uri "https://github.com/SteveTheKiller/KillerPDF/releases/latest/download/KillerPDF.zip" -OutFile "KillerPDF.zip"
Expand-Archive -Path "KillerPDF.zip" -DestinationPath ".\KillerPDF"
.\KillerPDF\KillerPDF.exe
No installer, no admin rights required. Just unzip and run.
Building from Source
Requirements
Windows 10/11 x64
.NET 8 SDK or later (to build; output targets .NET Framework 4.8)
Git
Clone and Build git clone https://github.com/SteveTheKiller/KillerPDF.git
cd KillerPDF
dotnet publish -c Release
Output lands in bin/Release/net48/publish/. The publish step produces:
KillerPDF.exe — single Costura-bundled executableKillerPDF-<version>-src.zip — GPL3 corresponding source archive
Project Structure KillerPDF/
├── App.xaml / App.xaml.cs # Application entry, theming
├── MainWindow.xaml / .cs # Primary WPF window, toolbar, page canvas
├── PdfDocument.cs # PDFium wrapper (Docnet.Core), load/save/render
├── PageViewModel.cs # Page data binding, annotation layer
├── AnnotationCanvas.cs # Custom Canvas for drawing/annotation
├── SignatureManager.cs # Save/load/place signatures
├── MergeWindow.xaml / .cs # Merge multiple PDFs UI
├── SplitWindow.xaml / .cs # Page selection and split UI
├── SearchPanel.xaml / .cs # Full-text search UI
├── PrintHelper.cs # Flatten annotations and print
├── Models/
│ ├── Annotation.cs # Base annotation model
│ ├── TextBoxAnnotation.cs
│ ├── DrawingAnnotation.cs
│ └── HighlightAnnotation.cs
└── Resources/
└── Icons/ # SVG/PNG toolbar icons
Key Dependencies
<Project Sdk ="Microsoft.NET.Sdk" >
<PropertyGroup >
<OutputType > WinExe</OutputType >
<TargetFramework > net48</TargetFramework >
<UseWPF > true</UseWPF >
<AssemblyName > KillerPDF</AssemblyName >
</PropertyGroup >
<ItemGroup >
<PackageReference Include ="Docnet.Core" Version ="2.6.0" />
<PackageReference Include ="Costura.Fody" Version ="5.7.0" />
<PackageReference Include ="Fody" Version ="6.8.0" />
</ItemGroup >
</Project >
Core Patterns and Code Examples
Opening and Rendering a PDF Page using Docnet.Core;
using Docnet.Core.Models;
using System.Windows.Media.Imaging;
using System.Runtime.InteropServices;
public class PdfDocument : IDisposable
{
private IDocLib _docLib;
private IDocReader _docReader;
private readonly string _filePath;
public int PageCount { get ; private set ; }
public void Open (string filePath, string password = "" string .IsNullOrEmpty(password)
? _docLib.GetDocReader(filePath, new PageDimensions(1080 , 1920 ))
: _docLib.GetDocReader(filePath, password, new PageDimensions(1080 , 1920 ));
PageCount = _docReader.GetPageCount();
}
public BitmapSource RenderPage (int pageIndex, double dpi = 150 using var pageReader = _docReader.GetPageReader(pageIndex);
int width = pageReader.GetPageWidth();
int height = pageReader.GetPageHeight();
var rawBytes = pageReader.GetImage();
var bitmap = new WriteableBitmap(width, height, dpi, dpi,
System.Windows.Media.PixelFormats.Bgra32, null );
bitmap.WritePixels(
new System.Windows.Int32Rect(0 , 0 , width, height),
rawBytes, width * 4 , 0 );
bitmap.Freeze();
return bitmap;
}
public string GetPageText (int pageIndexusing var pageReader = _docReader.GetPageReader(pageIndex);
return pageReader.GetText();
}
public void Dispose ()
Annotation Model Hierarchy
public abstract class Annotation
{
public Guid Id { get ; } = Guid.NewGuid();
public int PageIndex { get ; set ; }
public System.Windows.Rect Bounds { get ; set ; }
public double Opacity { get ; set ; } = 1.0 ;
public abstract UIElement ToUIElement ()public abstract void FlattenToPdfPage (PdfPage page )public class TextBoxAnnotation : Annotation
{
public string Text { get ; set ; } = "" ;
public string FontFamily { get ; set ; } = "Arial" ;
public double FontSize { get ; set ; } = 12 ;
public System.Windows.Media.Color Color { get ; set ; }
= System.Windows.Media.Colors.Black;
public override UIElement ToUIElement ()var tb = new TextBox
{
Text = Text,
FontFamily = new System.Windows.Media.FontFamily(FontFamily),
FontSize = FontSize,
Foreground = new System.Windows.Media.SolidColorBrush(Color),
Background = System.Windows.Media.Brushes.Transparent,
BorderThickness = new Thickness(0 ),
AcceptsReturn = true ,
Width = Bounds.Width,
Height = Bounds.Height,
Opacity = Opacity,
};
Canvas.SetLeft(tb, Bounds.X);
Canvas.SetTop(tb, Bounds.Y);
return tb;
}
public override void FlattenToPdfPage (PdfPage page )public class HighlightAnnotation : Annotation
{
public System.Windows.Media.Color HighlightColor { get ; set ; }
= System.Windows.Media.Colors.Yellow;
public override UIElement ToUIElement ()var rect = new System.Windows.Shapes.Rectangle
{
Fill = new System.Windows.Media.SolidColorBrush(
System.Windows.Media.Color.FromArgb(
(byte )(Opacity * 128 ),
HighlightColor.R, HighlightColor.G, HighlightColor.B)),
Width = Bounds.Width,
Height = Bounds.Height,
};
Canvas.SetLeft(rect, Bounds.X);
Canvas.SetTop(rect, Bounds.Y);
return rect;
}
public override void FlattenToPdfPage (PdfPage page )
Freehand Drawing on the Annotation Canvas
public class AnnotationCanvas : Canvas
{
private Polyline _currentStroke;
private List<Point> _points = new ();
public System.Windows.Media.Color PenColor { get ; set ; }
= System.Windows.Media.Colors.Red;
public double PenThickness { get ; set ; } = 2.0 ;
public bool IsDrawingMode { get ; set ; }
protected override void OnMouseLeftButtonDown (MouseButtonEventArgs e )if (!IsDrawingMode) return ;
_points.Clear();
_currentStroke = new Polyline
{
Stroke = new SolidColorBrush(PenColor),
StrokeThickness = PenThickness,
StrokeLineJoin = PenLineJoin.Round,
StrokeStartLineCap = PenLineCap.Round,
StrokeEndLineCap = PenLineCap.Round,
};
Children.Add(_currentStroke);
CaptureMouse();
AddPoint(e.GetPosition(this ));
}
protected override void OnMouseMove (MouseEventArgs e )if (!IsDrawingMode || _currentStroke == null
|| e.LeftButton != MouseButtonState.Pressed) return ;
AddPoint(e.GetPosition(this ));
}
protected override void OnMouseLeftButtonUp (MouseButtonEventArgs e )if (!IsDrawingMode || _currentStroke == null ) return ;
ReleaseMouseCapture();
var ann = new DrawingAnnotation { Points = _points.ToList(),
Color = PenColor, Thickness = PenThickness };
AnnotationCommitted?.Invoke(this , ann);
_currentStroke = null ;
}
private void AddPoint (Point p )public event EventHandler<DrawingAnnotation> AnnotationCommitted;
}
Signature Manager
public class SignatureManager
{
private readonly string _sigDir;
public SignatureManager ()"Signatures" );
Directory.CreateDirectory(_sigDir);
}
public void Save (string name, RenderTargetBitmap bitmapvar encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(bitmap));
using var fs = File.OpenWrite(Path.Combine(_sigDir, name + ".png" ));
encoder.Save(fs);
}
public IEnumerable<(string Name, BitmapImage Image)> LoadAll()
{
foreach (var file in Directory.EnumerateFiles(_sigDir, "*.png" ))
{
var img = new BitmapImage(new Uri(file ));
img.Freeze();
yield return (Path.GetFileNameWithoutExtension(file ), img)public Image PlaceSignature (BitmapImage sigImage, Point position,
double scale = 1.0 )var img = new Image
{
Source = sigImage,
Width = sigImage.PixelWidth * scale,
Height = sigImage.PixelHeight * scale,
Opacity = 0.9 ,
};
Canvas.SetLeft(img, position.X);
Canvas.SetTop(img, position.Y);
return img;
}
}
Merging PDFs
public static void MergePdfs (IEnumerable<string > inputPaths, string outputPath )using var output = new PdfDocument();
foreach (var path in inputPaths)
{
using var input = PdfReader.Open(path, PdfDocumentOpenMode.Import);
for (int i = 0 ; i < input.PageCount; i++)
output.AddPage(input.Pages[i]);
}
output.Save(outputPath);
}
Splitting Pages public static void SplitPages (string inputPath, IEnumerable<int > pageIndices,
string outputPathusing var input = PdfReader.Open(inputPath, PdfDocumentOpenMode.Import);
using var output = new PdfDocument();
foreach (var idx in pageIndices)
output.AddPage(input.Pages[idx]);
output.Save(outputPath);
}
Full-Text Search
public List<(int PageIndex, System.Windows.Rect Rect)> Search(
string query, PdfDocument doc)
{
var results = new List<(int , System.Windows.Rect)>();
var docLib = DocLib.Instance;
using var reader = docLib.GetDocReader(doc.FilePath,
new PageDimensions(1080 , 1920 ));
for (int i = 0 ; i < reader.GetPageCount(); i++)
{
using var page = reader.GetPageReader(i);
var text = page.GetText();
if (!text.Contains(query, StringComparison.OrdinalIgnoreCase))
continue ;
var chars = page.GetCharacters();
int idx = text.IndexOf(query, StringComparison.OrdinalIgnoreCase);
while (idx >= 0 && idx + query.Length <= chars.Count)
{
var first = chars[idx];
var last = chars[idx + query.Length - 1 ];
var rect = new System.Windows.Rect(
first.Box.Left, first.Box.Top,
last.Box.Right - first.Box.Left,
last.Box.Bottom - first.Box.Top);
results.Add((i, rect));
idx = text.IndexOf(query, idx + 1 ,
StringComparison.OrdinalIgnoreCase);
}
}
return results;
}
Printing with Flattened Annotations
public static void PrintDocument (BitmapSource[] renderedPages, string docTitle )var pd = new PrintDialog();
if (pd.ShowDialog() != true ) return ;
var doc = new FixedDocument();
foreach (var page in renderedPages)
{
var pageContent = new PageContent();
var fixedPage = new FixedPage
{
Width = pd.PrintableAreaWidth,
Height = pd.PrintableAreaHeight,
};
var img = new Image
{
Source = page,
Width = pd.PrintableAreaWidth,
Height = pd.PrintableAreaHeight,
Stretch = System.Windows.Media.Stretch.Uniform,
};
fixedPage.Children.Add(img);
((IAddChild)pageContent).AddChild(fixedPage);
doc.Pages.Add(pageContent);
}
var xpsWriter = PrintQueue.CreateXpsDocumentWriter(
pd.PrintQueue);
xpsWriter.Write(doc);
}
public static BitmapSource FlattenPage (BitmapSource pdfPageBitmap,
AnnotationCanvas canvas, int width, int height )var visual = new DrawingVisual();
using (var ctx = visual.RenderOpen())
{
ctx.DrawImage(pdfPageBitmap,
new System.Windows.Rect(0 , 0 , width, height));
var canvasBrush = new VisualBrush(canvas);
ctx.DrawRectangle(canvasBrush, null ,
new System.Windows.Rect(0 , 0 , width, height));
}
var rtb = new RenderTargetBitmap(width, height, 96 , 96 ,
System.Windows.Media.PixelFormats.Pbgra32);
rtb.Render(visual);
rtb.Freeze();
return rtb;
}
MainWindow Integration Pattern
public partial class MainWindow : Window
{
private PdfDocument _doc = new ();
private SignatureManager _sigManager = new ();
private int _currentPage = 0 ;
private void OpenFile_Click (object sender, RoutedEventArgs evar dlg = new OpenFileDialog { Filter = "PDF files|*.pdf" };
if (dlg.ShowDialog() != true ) return ;
_doc.Open(dlg.FileName);
_currentPage = 0 ;
ShowPage(_currentPage);
}
private void ShowPage (int index150 );
AnnotLayer.Children.Clear();
}
private void DrawMode_Click (object sender, RoutedEventArgs eprivate void AddTextBox_Click (object sender, RoutedEventArgs evar ann = new TextBoxAnnotation
{
PageIndex = _currentPage,
Bounds = new Rect(50 , 50 , 200 , 40 ),
Text = "Double-click to edit" ,
};
AnnotLayer.Children.Add(ann.ToUIElement());
}
private void PlaceSignature_Click (object sender, RoutedEventArgs eif (SignatureList.SelectedItem is not (string _, BitmapImage sigreturn ;
var placed = _sigManager.PlaceSignature(sig,
new Point(100 , 100 ), scale: 0.5 );
AnnotLayer.Children.Add(placed);
}
private void Save_Click (object sender, RoutedEventArgs eprivate void Print_Click (object sender, RoutedEventArgs evar pages = Enumerable.Range(0 , _doc.PageCount)
.Select(i => PrintHelper.FlattenPage(
_doc.RenderPage(i, 150 ), AnnotLayer, 1080 , 1920 ))
.ToArray();
PrintHelper.PrintDocument(pages, "KillerPDF Document" );
}
}
XAML Layout Snippet
<Window x:Class ="KillerPDF.MainWindow"
xmlns ="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x ="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local ="clr-namespace:KillerPDF"
Title ="KillerPDF" Width ="1200" Height ="800"
Background ="#1E1E1E" >
<DockPanel >
<ToolBar DockPanel.Dock ="Top" Background ="#2D2D2D" >
<Button Content ="Open" Click ="OpenFile_Click" />
<Button Content ="Save" Click ="Save_Click" />
<Button Content ="Merge" Click ="Merge_Click" />
<Button Content ="Split" Click ="Split_Click" />
<Separator />
<Button Content ="Text" Click ="AddTextBox_Click" />
<Button Content ="Draw" Click ="DrawMode_Click" />
<Button Content ="Highlight" Click ="AddHighlight_Click" />
<Button Content ="Sign" Click ="PlaceSignature_Click" />
<Separator />
<Button Content ="Search" Click ="ToggleSearch_Click" />
<Button Content ="Print" Click ="Print_Click" />
</ToolBar >
<ScrollViewer VerticalScrollBarVisibility ="Auto" >
<Grid >
<Image x:Name ="PageImage" Stretch ="Uniform" />
<local:AnnotationCanvas x:Name ="AnnotLayer"
Background ="Transparent"
AnnotationCommitted ="AnnotLayer_AnnotationCommitted" />
</Grid >
</ScrollViewer >
</DockPanel >
</Window >
Configuration KillerPDF is intentionally config-free for end users. For contributors:
Setting Where Default DPI for rendering PdfDocument.RenderPage(dpi:) parameterPen defaults AnnotationCanvas.PenColor, .PenThicknessSignature storage path SignatureManager._sigDir (next to EXE)Single-EXE bundling FodyWeavers.xml (Costura config)Build target framework KillerPDF.csproj <TargetFramework>net48</TargetFramework>
No registry writes, no %APPDATA% usage — everything lives alongside the EXE.
Common Patterns
Drag-and-Drop Page Reordering
private void PageList_PreviewMouseMove (object sender, MouseEventArgs eif (e.LeftButton == MouseButtonState.Pressed && _dragItem != null )
DragDrop.DoDragDrop(PageList, _dragItem, DragDropEffects.Move);
}
private void PageList_Drop (object sender, DragEventArgs eif (e.Data.GetData(typeof (PageViewModel)) is not PageViewModel src) return ;
var target = (PageViewModel)((ListBoxItem)e.OriginalSource
.FindAncestor<ListBoxItem>()).DataContext;
int from = Pages.IndexOf(src);
int to = Pages.IndexOf(target);
Pages.Move(from , to);
}
Color Picker for Annotations
private void ColorButton_Click (object sender, RoutedEventArgs evar picker = new ColorPickerDialog { SelectedColor = AnnotLayer.PenColor };
if (picker.ShowDialog() == true )
AnnotLayer.PenColor = picker.SelectedColor;
}
Troubleshooting Problem Cause Fix DllNotFoundException: pdfium.dllPDFium native missing from bundle Run dotnet publish (not just build); Costura bundles natives on publish Blank page rendered Wrong PageDimensions or index out of range Verify pageIndex < PageCount; use reasonable dimensions like (1080, 1920) High memory on large PDFs Holding all pages rendered simultaneously Render on demand; dispose IPageReader after each render Annotations lost on save Flattening step skipped Call FlattenPage for every page before writing output PDF Build error net48 SDK missing Building with old SDK Install .NET 8 SDK; it can cross-target to net48 Signatures not found EXE moved without Signatures/ folder Signatures/ folder must stay next to EXE; it's created automatically on first runWPF designer crash Costura not compatible with design-time Ignore design-time errors; run normally to test
License Note KillerPDF is GPLv3 . Any fork, modification, or redistribution — including commercial rebrands — must be released under GPLv3 with source available. The build pipeline automatically produces a KillerPDF-<version>-src.zip for GPL compliance.
GPLv3 — https://github.com/SteveTheKiller/KillerPDF/blob/main/LICENSE
