T42 to XV Converter

Render Type 42 font glyphs as XV thumbnail images online for free

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Quick Thumbnails

XV produces compact thumbnail images — get fast visual previews of your T42 font specimens for browsing and organization purposes.

UNIX Integration

XV thumbnails integrate with the classic XV image viewer and UNIX file managers — convert T42 fonts for quick visual identification.

Server Rendering

All processing happens on our servers. No UNIX tools or image viewers needed locally — just upload and download.

How to convert T42 to XV

1

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

2

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

3

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

About formats

T42 (Type 42) is a PostScript font format developed by Adobe Systems that wraps a TrueType font inside a PostScript font dictionary, enabling PostScript printers equipped with a TrueType rasterizer to print TrueType fonts natively. The name reportedly references Douglas Adams' "The Hitchhiker's Guide to the Galaxy," where 42 is the answer to the ultimate question. Type 42 was introduced with PostScript interpreter version 2013 in the mid-1990s, with Adobe publishing the formal specification as Technical Note #5012 in July 1998. The format embeds the complete TrueType font data — outlines, hinting instructions, and tables — as a binary string within the PostScript sfnts dictionary entry, while wrapping it in standard PostScript font structure including CharStrings, Encoding, and FontInfo dictionaries. One advantage is preserved TrueType hinting: because the original quadratic spline outlines and grid-fitting instructions are passed directly to the TrueType rasterizer, the printed output matches the screen rendering quality that TrueType hinting was designed to deliver. This is superior to the alternative approach of converting TrueType outlines to Type 1 cubics, which discards hinting. Type 42 also enables PostScript workflows to incorporate the vast library of TrueType fonts bundled with Windows and macOS without manual font conversion. PDF generators commonly use Type 42 embedding when including TrueType fonts in PostScript-based output pipelines. The format bridges two major font technologies that evolved separately, ensuring interoperability across the PostScript and TrueType ecosystems.
Developer: Adobe Systems
Initial release: 1995
XV is an alternate file extension for the VIFF (Visualization Image File Format) developed by Khoral Research as part of the Khoros scientific image processing environment, which originated at the University of New Mexico around 1990. The .xv extension and the .viff extension refer to the same underlying format — a container with a 1024-byte header encoding image dimensions, data type (from single-bit to double-precision float and complex numbers), color space, band count, and optional spatial location metadata, followed by color map data and pixel values. The XV extension became common on systems where Khoros was installed alongside other X Window System tools, and in some research communities .xv was preferred over .viff as a shorter alternative. Khoros itself was a pioneering visual programming system where scientists assembled image processing pipelines by wiring together processing nodes in a graphical canvas — an approach that predated and influenced similar environments in MATLAB, LabVIEW, and commercial remote sensing packages. One advantage of the VIFF/XV format is its ability to store data at scientific precision levels — floating-point and complex number pixel values preserve measurement accuracy that would be lost in photographic formats limited to 8-bit or 16-bit integers, making it valuable for spectral analysis, computational physics output, and satellite imagery. The multi-band architecture provides another strength, allowing a single file to hold dozens of spectral channels from multispectral or hyperspectral sensors without splitting data across multiple files. XV files are supported by ImageMagick and can be converted to modern image formats for visualization or publication.
Developer: Khoral Research
Initial release: 1990

Frequently Asked Questions

Why convert T42 to XV?

XV format is used by the XV image viewer for thumbnails and cached previews — converting T42 fonts to XV creates quick visual references in UNIX environments.

How do I open an XV file?

The XV image viewer on UNIX systems displays these natively. ImageMagick can also read and convert XV files. GIMP handles them through plugins.

Is XV a full-resolution format?

XV typically stores reduced-resolution thumbnails. For full-resolution font specimens, consider PNG or TIFF instead.

Can I convert T42 fonts in bulk?

Yes. Upload several T42 files at once and Convertio renders a separate XV thumbnail for each.

Is this service free?

Yes — completely free on Convertio with no registration or installation needed.