SFW to TIFF Converter

Convert Seattle FilmWorks photos to TIFF format online for free

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Effortless Process

The SFW to TIFF converter guides you through a clear upload-convert-download workflow — no technical expertise required.

Any Device Works

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

Browser-Based Tool

No downloads or plugins needed — convert SFW to TIFF directly in your web browser on any operating system or device.

How to convert SFW to TIFF

1

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

2

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

3

Let the file convert and you can download your tiff 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
TIFF (Tagged Image File Format) is a flexible raster image format originally developed by Aldus Corporation (later acquired by Adobe) in October 1986 for desktop publishing and scanning applications. The format uses a tagged data structure where the image file header points to one or more Image File Directories (IFDs), each containing a set of tags that describe the image's dimensions, color space, compression, resolution, and other properties. This extensible architecture means TIFF can accommodate virtually any image type: 1-bit bilevel, grayscale, indexed color, RGB, CMYK, CIE L*a*b*, and beyond, at any bit depth from 1 to 64 bits per sample. TIFF supports multiple compression methods including none (uncompressed), LZW, DEFLATE, JPEG, and CCITT Group 3/4 fax compression, as well as multi-page documents, tiled storage for efficient random access to large images, and floating-point pixel values for HDR content. One advantage is professional-grade flexibility — TIFF handles the full range of image types encountered in publishing, prepress, medical imaging, geospatial analysis, and scientific research, where specialized color spaces and high bit depths are required. Lossless archival quality is another core strength: TIFF with no compression or LZW/DEFLATE preserves every pixel value exactly, making it the standard archival format for libraries, museums, and any institution that requires guaranteed long-term image fidelity. TIFF is supported by every major image editing, scanning, and publishing application across all platforms.
Developer: Aldus / Adobe
Initial release: October 1986

Frequently Asked Questions

Why convert SFW to TIFF?

SFW is a defunct proprietary format — the company no longer exists. Converting to TIFF rescues your irreplaceable 1990s photos permanently.

What programs can open TIFF?

Adobe Photoshop, GIMP, IrfanView, XnView, macOS Preview, and most professional publishing software handle TIFF without issues.

Does SFW to TIFF preserve quality?

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

How long does SFW to TIFF conversion take?

Conversion is handled on cloud servers and usually completes in a few seconds. Larger or higher-resolution SFW images may take slightly longer.

Can I convert multiple SFW images at once?

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

What happened to Seattle FilmWorks?

The company closed in the early 2000s, leaving SFW photos stranded. Convertio lets you recover those images by converting to TIFF.

SFW to TIFF Quality Rating

4.0 (4 votes)
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