DST to LRF Converter

Convert DST embroidery patterns to Sony LRF ebook format

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Sony Reader Format

Transform DST embroidery data into LRF ebooks — viewable on Sony Reader devices for portable pattern reference.

No Hassle

Upload, select LRF, download. The process is completely automatic — no ebook authoring tools needed.

Secure Files

DST files are deleted post-conversion. LRF downloads are cleared from Convertio within 24 hours.

How to convert DST 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

DST (Tajima) is a machine embroidery file format created by Tajima Industries, one of the world's leading manufacturers of commercial embroidery equipment. The format encodes stitch data as a sequence of relative coordinate movements, with each stitch record containing a horizontal offset, vertical offset, and a command flag indicating the stitch type — normal stitch, jump (move without stitching), color change, or stop. DST files use a compact binary encoding where each stitch occupies three bytes, making the format efficient for storing complex multi-color designs with tens of thousands of stitches. The coordinate system uses 0.1 mm increments with a maximum single-stitch length of 12.1 mm in any direction. DST has become the de facto standard in the commercial embroidery industry — virtually every embroidery machine from any manufacturer can read DST files, making it the most widely supported embroidery format in existence. One advantage is universal machine compatibility: a DST file will run reliably on Tajima, Barudan, SWF, Brother, and Melco machines alike, eliminating format conversion concerns. The minimal file structure is another strength — files are compact, load instantly even on older machine controllers with limited memory, and their simplicity makes them resistant to corruption during transfer. While DST lacks embedded metadata like thread color names and design previews, this limitation is offset by the format's unmatched portability across the global embroidery industry.
Developer: Tajima Industries
Initial release: 1987
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 DST to LRF?

LRF is the Sony Reader ebook format. Converting DST wraps your embroidery design visual in a file readable on Sony e-readers.

What opens LRF files?

Sony Reader devices display LRF natively. Calibre can open and convert LRF files on desktop computers.

Is LRF still relevant?

LRF is largely superseded by EPUB, but existing Sony Reader owners may still use LRF for their device library.

Does the embroidery render display properly?

The conversion embeds a visual rendering of the DST pattern within the LRF structure, viewable on compatible devices.

Is DST to LRF free?

Yes — free conversion on Convertio. Upload your file and download without any charges.

Can I convert from any device?

Convertio runs in any browser on any platform — desktop, mobile, tablet all work.