Word to PDF Converter
Convert Word documents (DOCX) to PDF online for free. No upload to servers, 100% browser-based processing.
About This Tool
Word to PDF converts DOCX documents into PDF format directly in your browser. It preserves text formatting, headings, lists, and basic table layouts, producing a universally shareable PDF — essential for job seekers converting resumes, students submitting assignments, and professionals distributing finalized documents.
Drag & drop a DOCX file here, or click to browse
Only DOCX files are supported
How to Use
- Drag and drop a DOCX file into the upload area above, or click to browse and select a file.
- Once the file is loaded, the file name and size will be displayed.
- If you selected the wrong file, click the 'Remove' button and select another file.
- Click the 'Convert to PDF' button to start the conversion.
- The converted PDF file will download automatically when complete.
Frequently Asked Questions
Is it safe to convert Word to PDF here?
Yes, all processing happens entirely in your browser. Your files are never uploaded to any server, making it 100% private and secure.
What file formats are supported?
Only DOCX format (.docx) is supported. Legacy DOC files (.doc) are not supported.
Will the formatting be preserved?
Basic text and paragraph structure are preserved. Images, tables, and complex formatting (fonts, colors, etc.) may vary in the converted output.
Are there file size limits?
There are no server-side limits. It depends on your browser's available memory. Typically, documents of tens of MBs can be processed without issues.
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How It Works
The DOCX file is read as an ArrayBuffer through the File API and unzipped to access its Office Open XML structure. A JavaScript DOCX parser (such as mammoth.js or docx-preview) extracts the document content — paragraphs, headings, lists, tables, bold/italic formatting, and font sizes — and converts them into a structured intermediate representation. This content is then rendered either onto HTML elements or directly onto an HTML5 Canvas, preserving layout and pagination. The rendered pages are converted into PDF format using pdf-lib or jsPDF, with each page captured at print-quality resolution. The final PDF is output as a Blob for immediate download.
Every step — DOCX parsing, content rendering, and PDF assembly — runs entirely client-side in your browser using JavaScript libraries and the File API. Your documents are never sent to any server, ensuring total privacy and security.