Will the PDF look identical to the Word document?

Not necessarily. DOCX is converted to HTML and rendered by the browser rather than Microsoft Word, so fonts, spacing, page breaks, headers, shapes, and complex tables may change.

How many Excel worksheets are included?

Only the first worksheet in the workbook is converted. Move the required sheet into first position or save each sheet in a separate workbook before converting.

Can I choose a different PDF page size?

No. The implementation generates A4 portrait pages for Word documents and A4 landscape pages for spreadsheets.

Is text in the generated PDF selectable?

The HTML is captured through canvas and added to the PDF as rendered image content, so it should not be relied on as selectable, searchable, or accessibility-structured text.

Does the converter recalculate Excel formulas?

No. SheetJS reads values stored in the workbook; the workflow does not run Microsoft Excel's calculation engine. Recalculate and save the workbook before conversion when current formula results matter.

Word to PDF Converter: How Browser Rendering Changes the Result

Browser-Rendered

This Word to PDF converter reads a DOCX document or an XLSX workbook, turns its content into HTML, and renders that HTML into a PDF. Word files use A4 portrait; spreadsheets use A4 landscape. It is convenient for simple documents, but it is not Microsoft Office's native export engine. Complex layouts can change, Excel conversion includes only the first worksheet, and the canvas-based PDF should not be treated as selectable text.

Open Word / Excel to PDF

When browser-rendered Office conversion makes sense

Simple documents: convert an agenda, checklist, letter, or basic report without opening Office.
Read-only snapshots: share a straightforward worksheet as a fixed view rather than an editable workbook.
Limited devices: create a PDF on a Chromebook or computer without Word or Excel installed.
Internal circulation: prepare a quick reference copy where pixel-perfect brand layout is not required.

For contracts, professional print files, accessibility-critical documents, or highly designed proposals, export from the application that created the document.

Supported files and generated PDF

Reliable input paths

DOCX for Word and XLSX for Excel. The picker may recognize older DOC and XLS files, but legacy Word DOC is not reliably parsed by the DOCX-focused Mammoth workflow. Save legacy files in a modern format first.

Output settings

A PDF named after the source file, using A4 portrait for Word or A4 landscape for Excel. Margins are 25 points. Only the first Excel worksheet is included.

Check the first worksheet before converting. SheetJS explicitly selects workbook.SheetNames[0]. Later tabs are not added to the PDF and no warning lists the omitted sheets.

How to convert Word or Excel to PDF

Prepare the source

Save as DOCX or XLSX. Recalculate formulas and move the required worksheet into first position.

Render the document

Select one file and start conversion. Large documents and tables require more browser memory and time.

Inspect before sharing

Open the PDF and verify every page break, table edge, font, image, heading, and spreadsheet value.

What happens under the hood

Three versioned browser libraries handle different stages and are downloaded from third-party CDNs when the tool needs them.

1. DOCX parsing: Mammoth.js 1.6.0 converts DOCX structures into HTML. It emphasizes semantic content rather than exact Word-page appearance.
2. Spreadsheet parsing: SheetJS 0.20.3 reads the workbook, chooses its first sheet, and creates an HTML table.
3. Browser layout: the implementation places that HTML in a temporary 750-pixel Word container or 1,000-pixel Excel container and applies page-break and table styles.
4. Canvas capture: html2pdf.js 0.10.1 uses html2canvas at scale 2 and JPEG quality 0.98, then assembles A4 pages through jsPDF.
5. Download: the generated Blob is saved with the source base name and a .pdf extension.

File contents are processed in browser memory and are not sent to WeConvertFiles for conversion.

Why it can differ from Microsoft Office

Fonts and page flow

Unavailable fonts are substituted. Different character widths change line wrapping and page breaks. Word-specific headers, footers, and fixed page positioning may not map to HTML.

Shapes and complex tables

Layered shapes, text boxes, SmartArt, charts, nested tables, merged cells, and exact widths can be omitted, simplified, or repositioned.

Excel behavior

The browser reads stored cell values but does not run Excel's calculation engine. Print areas, frozen panes, conditional formatting, charts, and hidden-sheet behavior are not reproduced as Office would.

Text becomes rendered page imagery

The canvas-capture path produces visual page content rather than structured document text. Do not rely on the result for search, copy-and-paste, tagging, or accessibility.

Limitations and when to export from Office

First sheet only: later Excel worksheets are omitted.
Fixed paper setup: A4 portrait for Word and A4 landscape for Excel; there is no Letter-size or orientation control.
No fidelity guarantee: do not use it for contractual layout, brand-critical presentation, professional printing, or exact pagination.
No searchable text guarantee: canvas-rendered pages do not preserve semantic text structure.
No workbook recalculation: save current formula results before conversion.
Memory limits: long documents and very large tables can slow or exhaust the browser.

Privacy and data handling

File contents are processed in browser memory and are not sent to WeConvertFiles for conversion. Mammoth.js, SheetJS, and html2pdf.js are downloaded from third-party CDNs when needed, so the workflow is not described as fully offline.

Zoho PageSense may collect consented site-usage data such as visits, clicks, scrolling, referrer, device information, and conversion events. PageSense is not given the selected document or workbook contents.

Troubleshooting

Excel tabs are missing

Only the first worksheet is rendered. Move the required tab first or save individual sheets as separate workbooks and convert them separately.

Fonts or page breaks changed

The browser substituted a font or recalculated the HTML flow. Use Word's own export when exact typography and pagination matter.

Spreadsheet columns are cut off

The table exceeds A4 landscape width. Narrow or hide columns in the workbook, save it, and convert again.

Formula values look outdated

Open the workbook in spreadsheet software, recalculate it, and save the updated values before converting.

A legacy file will not convert

Rename is not conversion. Open a DOC or older workbook in compatible software and save it as DOCX or XLSX first.

Frequently asked questions

Will the result look identical to Word?

Not necessarily. Mammoth produces HTML and the browser lays it out under different rules. Review typography, page breaks, tables, shapes, headers, and images before sharing.

Can I choose Letter size or orientation?

No. Current output is fixed to A4 portrait for Word and A4 landscape for Excel. Use Office export when another paper size or orientation is required.

Why is only one Excel sheet included?

The implementation selects the first sheet by name and converts only that table. Convert separate workbooks and then use Merge PDF if several sheets must become one file.

Can I search or select the PDF text?

Do not rely on it. The HTML is captured to canvas and inserted as rendered page imagery, so the result is not suitable when searchable or accessibility-structured text is required.

Can several documents be converted together?

This tool accepts one Office file at a time. Convert files separately, verify each result, and combine the finished PDFs with Merge PDF.

Create a browser-rendered PDF

Convert one DOCX or XLSX, then inspect every page before relying on the result.

Use Word / Excel to PDF