SFW to WMF Converter

Turn archived snapshots into WMF vector graphics for free

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Quick Turnaround

Most SFW files convert to WMF within moments. Server-side processing ensures speed regardless of your device capabilities.

Batch Support

Upload multiple SFW images and convert them all to WMF in one session — no need to repeat the process for each individual file.

Any Device Works

Convert SFW to WMF from a desktop, laptop, tablet, or phone. Any device with a modern browser and internet connection works.

How to convert SFW 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

SFW is a proprietary image format created by Seattle FilmWorks (later PhotoWorks) for their Pictures on Disk mail-order photo service, active primarily from 1994 through the early 2000s. Customers who sent film to Seattle FilmWorks for developing could opt to receive their photos back on 3.5-inch floppy disks in addition to (or instead of) traditional prints. SFW files contained the scanned photographs in a JPEG-based encoding wrapped in a custom header, designed to be viewed through Seattle FilmWorks' proprietary desktop software. The service was notably popular in the mid-1990s, offering one of the most accessible ways for ordinary consumers to obtain digital versions of their film photographs before consumer scanners and digital cameras became affordable. SFW files typically contained modest-resolution scans appropriate for screen viewing and small prints — sufficient quality for the 640x480 and 800x600 monitor resolutions common at the time. One advantage of SFW files is their role as historical artifacts: for many families, SFW disks represent the only digital copies of film-era photographs from the 1990s, preserved on media that predates widespread home scanning and digital photography. The underlying JPEG data ensures reasonable image quality despite the proprietary wrapper. Extracting images from SFW files is straightforward: tools like XnView, ImageMagick, and specialized SFW-to-JPEG converters can strip the proprietary header and save the standard JPEG data, making these nostalgic files accessible on any modern device.
Developer: Seattle FilmWorks
Initial release: 1994
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 SFW to WMF?

Seattle FilmWorks locked photos in a proprietary format. Converting SFW to WMF frees your personal photographs for modern use.

What programs can open WMF?

Microsoft Office apps, LibreOffice, IrfanView, and Windows applications handle WMF metafiles. GIMP imports them as raster.

How accurate is SFW to WMF conversion?

The conversion keeps your image data intact — WMF does not introduce compression artifacts, ensuring the output matches the original closely.

Is SFW to WMF conversion fast?

The process is fast — cloud-based processing handles SFW to WMF conversion in seconds for standard-sized images, even on slower connections.

Can I queue several SFW files for conversion?

Batch conversion is supported. Queue as many SFW files as you need and convert them all to WMF in a single run — no repeating steps manually.

Can I recover photos from old floppy disks?

If you can read the SFW files from the disk onto your computer, Convertio will convert them to WMF — rescuing those memories.