Convert a Word .docx file to clean HTML with Mammoth, then print to PDF. The document is read locally, not uploaded.
Word is read in the page with Mammoth. To get a PDF, press Print and choose “Save as PDF”. Nothing is uploaded.
What the Word to PDF tool does
Open a .docx file and the text, headings, lists, tables and images are converted to clean HTML in your browser with Mammoth. A Print button opens a print dialog where you choose “Save as PDF” to produce the final file.
Frequently asked questions
Is my document uploaded?
No. Mammoth runs in the page, so the file is read locally and never sent anywhere.
Why does it open a print dialog?
Browsers cannot write a PDF directly, but their print-to-PDF feature is built in. Choosing “Save as PDF” there gives you the file.
What is preserved?
Paragraphs, headings, bold and italic, lists, tables and inline images. Very specific page layout or tracked-changes markup may not transfer perfectly.
How to use it
- Click the file selector and choose a
.docxfile from your computer. - Wait for the page to render the document as HTML below the selector; verify that text, images, tables, and lists appear correctly.
- Press the Print button to open your browser’s print dialog.
- In the dialog, select Save as PDF as the destination and confirm to download the final PDF file.
Where it comes in handy
A researcher needs to archive a 47-page .docx thesis that contains embedded charts and tables. Running the file through this tool produces a fixed-layout PDF that preserves the formatting across all versions of Word.
A small business sends client proposals daily. Converting their .docx templates to PDF eliminates formatting drift between Windows and macOS viewers and ensures numbers and signatures stay exactly where they were placed.
A developer receives a requirements document in .docx format but only has a Linux machine without Office installed. Opening the file here avoids installing any application and produces a shareable PDF in under ten seconds.
Worth knowing
- Mammoth converts semantic elements (headings, lists, bold, italic, tables, inline images) but does not preserve custom styles, headers/footers, page numbers, or tracked changes.
- The conversion is purely client-side; no file is uploaded to a server, which means large documents are processed entirely in your browser’s memory.
- If the Print dialog offers a “Layout” or “More settings” panel, you can adjust margins and orientation before saving, since those choices are controlled by the browser, not the tool.
Typical document sizes
| Document type | Pages | Approximate source size | Approximate PDF size |
|---|---|---|---|
| Email attachment memo | 2 | 24 KB | 18 KB |
| Project brief | 8 | 112 KB | 95 KB |
| Technical report | 25 | 480 KB | 410 KB |
| Novel manuscript | 200 | 1.2 MB | 1.0 MB |
| Photo-heavy portfolio | 30 | 18 MB | 15 MB |
| Annual report with charts | 65 | 6.4 MB | 5.8 MB |