Why This Tool Rebuilds Your Document Instead of "Printing" It
Desktop Word has a "Save as PDF" feature that works by rendering the document exactly as its own layout engine draws it. A browser can't do that — there's no Word layout engine available client-side. So this tool takes a different route entirely.
How the conversion actually happens (and what that costs you)
Your .docx file is parsed by mammoth.js, which converts Word's XML structure into semantic HTML (headings, paragraphs, bold/italic runs, lists, tables). That HTML is then walked node-by-node and redrawn into a PDF using jsPDF's text-drawing API.
The redraw step is where fidelity is lost: jsPDF renders every line of text in the Helvetica font family, so your document's actual fonts — Calibri, Times New Roman, whatever you used — are always replaced, regardless of which font you picked in Word. Bold, italic, and heading sizes survive because they're applied as separate Helvetica variants based on the HTML tag. Colors, embedded images, and precise spacing don't survive the trip, and tables are flattened into pipe-separated plain text rather than a bordered grid.
What This Converter Can & Cannot Do
Capable of
- Convert .docx (Word 2007+) and .txt files to PDF in-browser
- Preserve heading levels, bold, italic, and list structure
- Process multiple documents in the same session
- Keep your document entirely local — nothing is uploaded
- Work identically on Windows, Mac, and Linux
Not designed for
- Preserve your original font — everything renders in Helvetica
- Keep embedded images, colors, or precise spacing
- Render tables as a real grid (they become plain pipe-separated text)
- Convert older .doc (Word 97-2003 binary) format
- Open password-protected Word documents
Upload .docx
Read via File API
Parse to HTML
mammoth.js
Redraw as PDF
jsPDF, Helvetica
Who This Is For
- Job Applications: Convert a resume or cover letter to PDF so formatting can't shift when a recruiter opens it in a different app.
- Academic Submissions: Submit assignments or papers in the PDF format many portals require.
- Read-Only Sharing: Turn a draft into a static document clients can view but not casually edit.
- Quick Text-Heavy Documents: Best suited to documents that are mostly text with simple structure — not design-heavy layouts.
Frequently Asked Questions
Why doesn't my document use its original font in the PDF?
jsPDF, the library that draws the PDF, only ships with a small set of standard fonts (Helvetica among them) and doesn't embed your Word document's font file. Every document converts to Helvetica regardless of what font you used originally.
What happens to tables and images?
Tables are converted to plain text with cell contents separated by " | " rather than a bordered grid — there's no table-drawing logic in the renderer. Images in the source document currently aren't re-embedded in the output at all.
For pixel-perfect formatting, what should I use instead?
Microsoft Word's own "Save as Adobe PDF" or "Export to PDF" feature, since it uses Word's actual layout engine. This tool trades that fidelity for being free, browser-based, and not requiring Word to be installed.
Is my document secure during conversion?
Yes — mammoth.js and jsPDF both run entirely in your browser tab. Your document is never uploaded to any server.
Can I convert password-protected Word documents?
No. Remove the password in Word first (Review or File > Info > Protect Document), save, then convert.
Related Tools
How We Compare
DocuTools
A free, install-free way to get a text-focused document into PDF without opening Word. If your document leans on custom fonts, images, or table layouts, expect to lose that fidelity here — this trades formatting accuracy for zero setup and zero uploads.
Microsoft Word
Better for exact formatting fidelity
Word's own PDF export uses its native layout engine, so fonts, images, spacing, and tables all render exactly as designed — there's no re-parsing involved. The trade-off is needing the Word app itself (desktop or a Microsoft 365 subscription) rather than just a browser tab.
Choose Microsoft Word instead if: the document's visual formatting matters and you have Word installed or a Microsoft 365 subscription.
Adobe Acrobat
Better for batch conversion and PDF editing after
Acrobat's converter also preserves formatting closely and adds PDF-specific tools afterward — commenting, redaction, form fields. It requires a subscription, and the web version uploads your file to Adobe's servers.
Choose Adobe Acrobat instead if: you need to edit the resulting PDF further (forms, redaction, comments) in the same toolchain.
Comparison based on each provider's public pricing/feature pages, checked July 2026. Verify current terms directly with the provider.
Convert Your Word Document to PDF Now
Fast, free, and private. Your document never leaves your browser — no upload, no sign-up required.