GitHub killertools.net

KillerPDF

~/killerpdf
$ killerpdf invoice.pdf

view high-quality rendering, thumbnails, zoom
edit inline text editing with font matching
annotate highlights, drawings, text boxes
sign reusable signatures, click to place
merge combine, split, reorder pages
print annotations flattened into output

No installer. No account. No subscription. No telemetry.
Free. Open. GPLv3. Built by a field tech who hates Adobe.

$
Download for Windows (.zip)
Windows 10/11 x64 · ~6 MB · No runtime required · source (zip)
$ KillerPDF v1.1.0
Verify download
SHA256755c4ac8dad9b717f45cf511235d60f82cbbbcd312f822283b37b69525283743
Now open source under GPLv3. View on GitHub →

What it does

View & Navigate

High-quality bitmap rendering via PDFium. Page thumbnails, Ctrl+scroll zoom, and keyboard shortcuts for fast navigation.

Merge & Split

Combine multiple PDFs into one or extract selected pages into a new file. Drag-and-drop page reordering in the sidebar.

Edit Text

Double-click any line of text to edit it inline. Font matching from the original PDF preserves the look of the document.

Annotate

Text boxes, freehand drawing, and highlight overlays with customizable colors, sizes, and opacity. Undo and clear per page.

Signatures

Draw and save reusable signatures. Click to place them anywhere on a page. Signatures persist between sessions.

Search & Select

Ctrl+F full-text search with highlighted results. Drag-select to copy text, or Ctrl+A to grab the whole page.

Print

Print with annotations flattened into the output. Ctrl+P or toolbar button sends directly to the system print dialog.

Single File, No Install

Fully self-contained EXE. No installer, no runtime install, no admin rights, no config files. Drop it on a USB and go.

Requirements

OS: Windows 10 or 11 (x64)

Runtime: None. Everything needed is inside the EXE.