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Category Document Converters

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Page Margin (m) 20mm Font Scale (s) 1.0x

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Supports .docx (OpenXML) files up to 20MB

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About

This tool transforms standard .docx files (OpenXML) into portable .pdf documents by leveraging the browser's high-fidelity rendering engine. Unlike server-side converters that may misinterpret fonts or privacy-invasive cloud solutions, this tool processes 100% of the data client-side.

We utilize the browser's native print compositor (Skia/Quartz) to generate the PDF. This ensures that the vector geometry of fonts and the pixel density of images remain sharp. The conversion process maps the XML document structure to HTML5, simulating the A4 paper constraints before the final export.

Note: Complex layout features like floating images or specific proprietary Word art may be simplified during the OpenXML → HTML translation.

Formulas

The layout engine calculates the viewport dimensions based on the ISO 216 standard for A4 paper:

W=210 mm

H=297 mm

For screen preview, we approximate the pixel dimensions at standard screen density (96 DPI):

W_px ≈ 210 × 9625.4 ≈ 794 px

Reference Data

Feature	Standard (DOCX)	Target (PDF)	Conversion Logic
Text Vectors	TrueType / OpenType	Embedded Subset	Native Font Rendering
Page Size	Letter / A4	A4 (210 × 297 mm)	CSS `@page` Definition
Resolution	Variable	300+ DPI	Vector Output
Images	Base64 / Binary	Compressed Bitmap	Pass-through Rendering
Tables	XML Grid	HTML Table	Flex/Grid Layout Mapping
Privacy	N/A	N/A	Local (In-Memory) Only

Frequently Asked Questions

This is a "True Native" converter. Browsers have highly optimized PDF generation engines built into their Print feature. By using this, we guarantee better font rendering and layout consistency than heavy JavaScript libraries.

No. The entire conversion happens in your browser's memory using JavaScript. No files are ever uploaded to a server.

Yes. The tool parses standard OpenXML table grids and converts them to HTML tables, which most modern browsers render perfectly in PDF format.

If an image is embedded using a non-standard wrapper (like VML or OLE objects in older Word files), the parser might skip it. Standard JPEG/PNG images work best.