XPM to TCR Converter

XPM to TCR — embed images in e-book format online

Drop files here. 1 GB maximum file size or Sign Up
to
Facebook Amazon Microsoft Tesla Nestle Walmart L'Oreal

Lightning Fast

XPM files are small and convert to TCR in seconds. The cloud-based engine handles the transformation quickly so you can download right away.

E-Reader Ready

Convert XPM images into TCR format, ready for e-readers and reading apps. TCR eBook is supported by major e-book platforms.

Batch Processing

Upload multiple XPM files at once and convert them all to TCR in a single session — ideal when you have many legacy images to migrate.

How to convert XPM to TCR

1

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

2

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

3

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

About formats

XPM (X PixMap) is a color image format for the X Window System, developed by Arnaud Le Hors at GROUPE BULL beginning in 1989 as the color successor to the monochrome XBM format. Like XBM, XPM files are valid C source code — each file defines the image as a static array of character strings, where the header strings specify width, height, number of colors, and characters per pixel, the color definition strings map character codes to color values (supporting X11 color names, hexadecimal RGB, and symbolic color types like 'background' and 'foreground'), and the pixel strings encode each row as a sequence of character codes that index the color palette. This ASCII art representation makes XPM images human-readable: one can often see the image content directly in the text of the source file. The format went through three revisions: XPM1 (1989, compatible with X10), XPM2 (simplified syntax), and XPM3 (1991, the current version with the static char* syntax and extended color specification). XPM was the standard format for X Window application icons, splash screens, pixmap buttons, and themed UI elements throughout the 1990s and 2000s. One advantage is the combined benefits of being a valid C source file and a color image: XPM files can be compiled into applications, edited in any text editor, processed by text tools, and version-controlled, while supporting up to 256 colors with transparency (using the 'None' color keyword). The X11 ecosystem's reliance on XPM ensures broad tool support. XPM files are handled by all X11 toolkits, ImageMagick, GIMP, and web browsers (legacy support).
Initial release: 1989
TCR (Text Compression for Reader) is a compressed plain-text ebook format developed by Barry Childress in the early 1990s for the Psion Series 3 family of palmtop computers. The format was created for Childress's Reader3 application, a text file viewer that needed to fit large books into the Psion's extremely limited storage — typically 128 KB to 2 MB of available memory. TCR uses a dictionary-based compression scheme derived from the earlier ZVR format by Ian Giddings, replacing repeated byte sequences with single-byte tokens that reference a header dictionary. This straightforward approach achieves compression ratios of roughly 40-60% on typical English prose while requiring minimal CPU resources for decompression. The Psion Series 3 ran on a 3.84 MHz NEC V30 processor with no floating-point unit, so TCR's low computational overhead was essential for smooth page-by-page reading. A key advantage is remarkable storage efficiency for its simplicity — users could carry dozens of novels on removable SSD cards that held only a few hundred kilobytes. The format found a dedicated user community among Psion enthusiasts who built libraries of compressed literature for portable reading years before smartphones existed. Though the Psion platform faded from the market in the early 2000s, TCR files can still be opened and converted by modern ebook tools, and the format stands as an early example of purpose-built mobile reading technology from the pre-smartphone era.
Developer: Barry Childress
Initial release: 1993

Frequently Asked Questions

Why would I convert XPM to TCR?

TCR (compressed text format for Psion devices) lets you include XPM graphics in e-book collections, accessible on dedicated readers and mobile apps.

What apps support TCR?

You can view TCR with Calibre, Psion e-book readers. These tools cover all major desktop and mobile platforms.

Can I convert multiple XPM files to TCR at once?

Absolutely. Batch upload your XPM images and convert them all to TCR in a single pass — no need to repeat the process for each file.

Are my uploaded files kept private?

Your privacy is protected. All uploaded files are erased after conversion and output files are purged within 24 hours — nothing is stored long-term.

What exactly is the XPM format?

XPM (color pixmap format for X Window System) originated in X11/Linux desktops. It has very limited modern application support but can be converted to modern formats on Convertio.

How long does XPM to TCR conversion take?

Conversion is nearly instant for most XPM files. Since these are small images, the entire process — upload to download — takes only moments.