Converting a Word document to PDF used to mean opening Microsoft Word, going to File → Save As, and hoping the formatting survived. PDFCraft's Word to PDF converter does this in your browser — no software, no upload, no account.
How it works
When you select a .docx file, the tool uses mammoth.js — an open-source library — to read your Word document and convert it to clean HTML directly in your browser. Your browser's PDF print engine then renders that HTML into a downloadable PDF. No bytes are sent to any server at any point.
What formats are supported?
.docx (Word 2007 and later) ✅ — fully supported
.doc (Word 97–2003) ❌ — open in Word first and save as .docx
.odt (LibreOffice) ❌ — export from LibreOffice as .docx first
.rtf ❌ — open in Word and save as .docx
When to use browser conversion vs Microsoft Word
Use PDFCraft when: you don't have Word installed, you're on a shared/public computer, you need a quick conversion without software, or you want guaranteed privacy (no cloud upload).
Use Microsoft Word's Save as PDF when: your document has complex layouts, custom fonts, embedded charts, tracked changes, or text boxes. Word's built-in conversion is pixel-perfect for complex documents.
Common Word to PDF questions
Why does my Word document look different in PDF?
Browser-based conversion uses HTML rendering, which may differ from Word's native rendering engine. Differences include: line spacing, paragraph spacing, custom fonts (replaced with system fonts), and complex table layouts. For critical documents, use Word's built-in Save as PDF or Google Docs export for the most accurate result.
Is my document private?
Yes, completely. PDFCraft runs entirely in your browser. Your .docx file is read by JavaScript running on your device — no bytes are sent to any server. This is especially important for sensitive documents like contracts, salary letters, and personal reports.
What is the maximum file size?
The recommended maximum is 10 MB. Larger files may slow down conversion since everything runs in your browser. Most text-based Word documents are well under 1 MB; only documents with many embedded images get close to the 10 MB limit.