BMP to WMF Converter

Easily convert BMP to WMF online — fast and free

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Shed the Weight

Uncompressed BMP files waste storage — converting to WMF applies efficient encoding that can reduce file size by 80% or more.

Quick Results

Most BMP to WMF conversions finish within moments — the entire upload, conversion, and download process takes well under a minute.

Bulk Conversion

Need to convert dozens of BMP files? Upload them all and batch-convert to WMF — much faster than processing one at a time.

How to convert BMP to WMF

1

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

2

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

3

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

About formats

BMP (Bitmap) is a raster image file format developed by Microsoft for the Windows operating system, introduced with Windows 3.0 in 1990. The format stores pixel data in a straightforward structure: a file header specifying dimensions, color depth, and compression method, followed by an optional color palette and then the raw pixel array. BMP supports color depths from 1-bit monochrome through 4-bit and 8-bit indexed color to 16-bit, 24-bit true color, and 32-bit with alpha channel. Most BMP files store pixels uncompressed (BI_RGB), though optional RLE compression is available for 4-bit and 8-bit modes. Pixels are arranged in bottom-up row order by default, with each row padded to a 4-byte boundary. One advantage is absolute simplicity — the format has no complex encoding, filtering, or compression layers, making BMP files trivial to read and write programmatically in any language. This simplicity also means BMP images render with zero decoding overhead, useful in scenarios where decompression latency matters. The format's deep Windows integration is another strength: BMP is the native bitmap format for Windows GDI, clipboard operations, and device-independent bitmap (DIB) handling, ensuring first-class support across the entire Windows ecosystem. While BMP's lack of compression produces large files unsuitable for web use or storage-constrained environments, it remains widely used as an intermediate format in image processing, as a clipboard exchange format, and in embedded systems where decoding simplicity outweighs file size.
Developer: Microsoft
Initial release: 1990
WMF (Windows Metafile) is a vector graphics format created by Microsoft, introduced with Windows 3.0 in May 1990 as the platform's native format for recording and replaying graphical operations. A WMF file captures a sequence of GDI (Graphics Device Interface) drawing commands — lines, rectangles, ellipses, polygons, text, and bitmap blits — in the order they were issued, serializing screen or printer output into a replayable file. The format uses a 16-bit coordinate space and organizes records as a linear stream of function calls with their parameters, preceded by a header specifying the bounding rectangle and resolution. WMF became deeply integrated into the Windows ecosystem as the default format for clip art collections, Office document graphics, and clipboard vector interchange during the 1990s — Microsoft Office shipped with thousands of WMF clip art images that defined a visual era of desktop publishing. One advantage is pervasive compatibility: virtually every Windows application from the past three decades can render WMF content, making it one of the most widely supported vector formats in existence. The lightweight recording model is another strength — WMF files are compact and render quickly because they replay native system drawing calls rather than interpreting a complex graphics language. While 16-bit limitations and lack of transparency and Bezier curves led Microsoft to develop EMF as a 32-bit replacement, WMF files remain ubiquitous in legacy documents and across current Windows software.
Developer: Microsoft
Initial release: May 22, 1990

Frequently Asked Questions

Why convert BMP to WMF?

WMF embeds your BMP as a Windows Metafile — integrating smoothly with Microsoft Office for use in Word documents and PowerPoint slides.

How do I open WMF files?

Microsoft Office, LibreOffice, CorelDRAW, Inkscape. Most modern operating systems also have built-in support or free viewer options available.

Can I convert multiple BMP files at once?

Yes — Convertio supports batch uploads. Queue several BMP files and convert them all to WMF format in a single session without repeating steps.

What happens to my uploaded files?

Your BMP files are automatically deleted right after conversion. The resulting WMF files remain available for download for 24 hours, then they are permanently removed.

How much smaller will the WMF be?

Depending on image content and WMF compression, expect file sizes 50-95% smaller than the original BMP. Photographic content typically compresses the most.

Can I convert BMP to WMF for free?

Yes — Convertio offers free BMP to WMF conversion. For professional volumes and larger files, premium plans provide expanded limits and priority processing.

BMP to WMF Quality Rating

4.2 (468 votes)
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