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KillerPDF icon

KillerPDF

Portable PDF editor for field techs and anyone tired of Adobe. View, annotate, edit text, OCR, fill forms, sign, merge, split, and print. Free and open source: no subscription, no account, no telemetry.

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  • Windows  Windows 10 or 11 (x64)
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Create and edit PDFs. Collaborate with ease. E-sign documents and collect signatures. Get everything done in one app, wherever you work. Acrobat’s got it. Stay on top of your documents with powerful features for desktop, mobile, ...

 
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Office & Productivity

GitHub repository

  •  4,045 Stars
  •  321 Forks
  •  49 Open Issues
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KillerPDF was added to AlternativeTo by Paul on and this page was last updated .

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What is KillerPDF?

Portable PDF editor for field techs and anyone tired of Adobe. View, annotate, edit text, OCR, fill forms, sign, merge, split, and print. Free and open source: no subscription, no account, no telemetry. Single ~16 MB Windows EXE - run it portable, or use the per-user installer (no admin rights). Also on winget: winget install killerpdf.

Features:

  • Inline text editing with font matching against the original document
  • Built-in OCR (Tesseract ships in the EXE): make scanned PDFs searchable, OCR a page or region to clipboard, extract all text to file; extra languages download on demand
  • Fill and save PDF forms; draw reusable signatures; cloud certificate signing via Certum SimplySign
  • Text boxes, freehand drawing, lines, and highlight overlays with adjustable color, size, and opacity
  • Merge, split, reorder, rotate, and extract pages; stamp page numbers; batch process folders or ZIPs
  • Tabbed viewing with four view modes (single page, continuous scroll, two-page, grid), outlines, and clickable links
  • High-quality rendering via PDFium (Docnet.Core)
  • Straighten crooked scans with a level line preview
  • Full-text search with result highlighting, drag-select to copy text
  • Print preview with scale, position, margins, and pages-per-sheet; annotations flattened into the output
  • Text watermarks and editable document metadata
  • Opens password-protected PDFs and repairs damaged files
  • Six themes, UI localized in nine languages
  • No account, no telemetry, no config sprawl