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WMZ to DBK Converter

Turn WMZ into DBK documents — browser-based

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Fully Browser-Based

No software to install, no plugins required. Open Convertio in any browser and convert WMZ to DBK immediately.

Visual Fidelity

Your WMZ visual data maintains its quality through the conversion pipeline — the DBK output looks accurate.

Batch Processing

Handle multiple WMZ files in a single session. Every file converts to DBK independently for organized output.

How to convert WMZ to DBK

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose dbk or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your dbk file right afterwards

About formats

WMZ is a compressed variant of the Windows Metafile (WMF) format, introduced by Microsoft with Office 2000 in 1999. A WMZ file is simply a WMF file compressed using the gzip algorithm (RFC 1952), reducing the file size for more efficient storage and embedding within Office documents, web pages, and other containers. The underlying WMF format stores vector graphics as a sequence of GDI (Graphics Device Interface) function calls — commands that draw lines, curves, polygons, text, and bitmaps — recorded in a device-independent format that can be replayed at any resolution. WMZ preserves this vector nature: when decompressed, the file produces a standard WMF that renders through the Windows GDI subsystem using the same drawing primitives as on-screen display, ensuring visual fidelity across different output devices and resolutions. WMZ files are commonly found embedded in Microsoft Office documents (Word, Excel, PowerPoint), HTML email messages generated by Outlook, and web content produced by Office's Save as Web Page feature. The format is also used for clip art and template graphics distributed with Office installations. One advantage is space efficiency: gzip compression typically reduces WMF file sizes by 60-80%, meaningful when many small graphics are embedded in a single document or web page. The format's deep integration with the Microsoft Office ecosystem is another practical strength — WMZ graphics render natively in all Office applications without additional software, and can be extracted, decompressed, and converted using tools like LibreOffice, ImageMagick, Inkscape, and standard gzip utilities.
Developer: Microsoft
Initial release: 1999
DBK is a file extension associated with DocBook, a semantic markup language for technical documentation defined in XML (and originally SGML). DocBook was created around 1991 by HaL Computer Systems and O'Reilly & Associates, later maintained by the OASIS DocBook Technical Committee. The vocabulary provides over 400 element types designed specifically for books, articles, reference pages, and technical manuals — including structural elements (book, chapter, section, appendix), block elements (para, programlisting, table, figure), and inline elements (emphasis, filename, command, classname). Authors write content focusing on meaning rather than appearance, and separate stylesheets transform the DocBook source into output formats like HTML, PDF, EPUB, and man pages. One advantage is strict separation of content and presentation — a single DocBook source document can generate a printed book, a website, an ebook, and Unix man pages through different transformation pipelines, without any content duplication. The rich semantic vocabulary is another strength: because elements like <command>, <filename>, and <errorcode> carry precise meaning, toolchains can index, cross-reference, and validate technical content in ways that generic markup cannot. DocBook has been adopted by major open-source projects including the Linux kernel documentation, GNOME, KDE, and FreeBSD for their official documentation, and it remains the standard for single-source technical publishing.
Initial release: 1991

Frequently Asked Questions

Why convert WMZ to DBK?

The WMZ format has limited viewer support. Converting to DBK ensures broad compatibility across devices.

How do I open DBK files?

XML editors, DocBook processors, oXygen will handle DBK files without issues. The format is well-supported across platforms.

Do I need to install anything?

Zero installs needed. Open Convertio in any browser, upload WMZ, and download DBK — that simple.

What quality can I expect from DBK output?

DBK provides semantic markup for technical documentation. The converter optimizes output for the best balance of quality and compatibility.

Does WMZ to DBK conversion work on mobile?

Yes — the converter runs in any modern browser, including mobile devices. No app installation required, just open the page and upload.

What platforms support this conversion?

No platform restrictions — if your device has a browser, you can convert WMZ to DBK on Convertio.