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ZeroPDF

Desktop PDF viewer and editor for Windows. Free, open source and no accounts. Edit the document text, not just annotate it.

MIT licence 23 languages No telemetry Works offline
ZeroPDF with a document open: thumbnails, page canvas and tool panel

Video

What it does

The essentials of a PDF editor, without subscriptions or limits.

✏️

Real text editing

Finds the PDF text operators, removes the original glyphs and redraws with the document's own font, size, colour, bold and italic.

🖍️

Annotations

Highlights, sticky notes, freehand drawing, shapes, images and hand-drawn signatures.

🔍

Offline OCR

Turns scanned pages into editable, searchable text using the Windows OCR engine.

📝

Forms

Fill AcroForm fields and flatten them on export to lock the data in.

🔒

Passwords and encryption

Opens protected PDFs with qpdf and saves AES-256 encrypted copies.

🔄

Conversion

PDF to Word and Word to PDF (via Word, LibreOffice or the built-in engine), plus image to PDF.

📄

Page management

Rotate, drag thumbnails to reorder, delete, merge PDFs, crop margins and add page numbers.

🖨️

Print and export

Printing through the Windows dialog, PNG page export and a copy with every change applied.

🌍

23 languages

English and Spanish included, plus Arabic with a right-to-left layout.

Languages

The whole interface, menus and messages are translated. English is fully supported.

EnglishEspañolDeutsch FrançaisItaliano中文(简体) 日本語Português (Brasil)Русский العربية한국어中文(繁體) NederlandsPolskiTürkçe SvenskaDanskNorsk bokmål Українськаहिन्दीTiếng Việt ไทยBahasa Indonesia

Before installing

SmartScreen may warn because the binaries are not code-signed yet: click “More info → Run anyway”. Every release publishes its SHA-256 hash next to the installer.

Requirements

Windows 10/11

64-bit. Per-user install, no administrator rights needed.

Optional OCR

Uses the languages installed in Windows. Works offline.

No dependencies

No account, no subscription and no Internet connection required to run.