CDT to LRF Converter

Convert CDT templates to LRF e-books online free

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Format Bridge

From CDT to LRF in moments — Convertio extracts your CorelDRAW template content into a portable Sony Reader e-book result.

Fast Results

Conversion runs entirely on Convertio servers — your device stays fast while CDT templates are transformed.

Device Freedom

Works on Windows, macOS, Linux, iOS, and Android. Any device with a browser can convert CDT files.

How to convert CDT to LRF

1

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

2

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

3

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

About formats

CDT (CorelDRAW Template) is a template file format used by CorelDRAW, Corel Corporation's vector graphics editor available since January 1989. A CDT file is structurally identical to a standard CDR document — sharing the same RIFF-based container, vector object types, color definitions, and page layout capabilities — but is designated as a reusable starting point for new designs rather than a finished artwork file. When opened in CorelDRAW, a CDT creates a new untitled document pre-populated with the template's content, leaving the original template unchanged for repeated use. This workflow mirrors the template model found in office productivity suites, adapted for graphic design. CDT files commonly contain pre-built layouts for business cards, brochures, letterheads, certificates, posters, and other standardized print materials, complete with placeholder text, guide lines, bleed areas, and properly configured color spaces for print output. One advantage is workflow consistency — design teams can distribute branded templates ensuring every new document starts with correct dimensions, margins, fonts, and color palettes aligned to corporate identity standards. The format also saves significant setup time: rather than configuring document properties and recreating layout elements from scratch, designers begin with a production-ready foundation. Corel ships hundreds of CDT templates with CorelDRAW installations, and the format is supported across CorelDRAW versions with the same compatibility considerations as CDR.
Developer: Corel Corporation
Initial release: 1989
LRF is the file format associated with Sony's BBeB (Broadband eBook) specification, jointly developed by Sony and Canon and introduced in 2004 with the Sony Librie EBR-1000EP — the world's first commercial E Ink e-reader. The format supports both reflowable text and fixed-layout page rendering, embedding fonts, images, vector graphics, and metadata within a compact binary container. LRF files use a block-based internal structure with object trees describing page layouts, text streams, image resources, and table of contents navigation. Sony's Reader devices and the companion desktop software (Sony Reader Library) served as the primary ecosystem for LRF content throughout the mid-2000s. A key advantage was its early adoption of high-quality font embedding and text rendering optimized specifically for E Ink displays, delivering a reading experience noticeably superior to many competing formats of the era. The format also supported bookmark synchronization, dictionary lookups, and annotations within the Sony Reader ecosystem. However, Sony officially discontinued BBeB/LRF support in 2010, migrating its Reader platform to the industry-standard EPUB format. Today LRF files are primarily encountered in personal ebook collections from that period and can be converted to modern formats using tools like Calibre. The format remains a historically significant milestone as the native format of the device category that launched the modern e-reader revolution.
Developer: Sony
Initial release: 2004

Frequently Asked Questions

Why convert CDT to LRF?

Converting CDT to LRF repurposes CorelDRAW template content into an e-book format readable on e-readers and mobile apps.

Which applications support LRF?

LRF files are for Sony Reader devices. Open them in Calibre, which also converts LRF to other formats.

How quickly can I get my LRF file?

Conversion typically completes in seconds. Convertio servers process CDT files rapidly, even complex ones.

What happens to my CDT file after conversion?

It is deleted. Convertio removes source files after processing and purges converted output within 24 hours.

Can I convert CDT to LRF on a Chromebook?

Yes — the converter is browser-based. Any device with Chrome, Firefox, or another modern browser works.

Is quality preserved when converting CDT to LRF?

The converter maintains high fidelity. Output quality closely matches the source CDT template design.