CCX to RB Converter

Free CCX to RB — RocketBook eBook format online

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eReader Format

CCX to RB produces output for RocketBook readers — making Corel clipart accessible in the RB ecosystem.

Server-Side Work

Conversion runs in the cloud — your computer is not burdened during the CCX to RB process.

Secure Handling

Uploaded files are deleted after conversion. RB output is removed from servers within 24 hours.

How to convert CCX to RB

1

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

2

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

3

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

About formats

CCX (Corel Compressed Exchange) is a compressed vector clipart format developed by Corel Corporation, introduced alongside CorelDRAW 5 in 1994. The format is essentially a compressed variant of CMX (Corel Presentation Exchange), packaging vector artwork, embedded bitmaps, and metadata into a smaller file suitable for distribution on CD-ROM clipart collections and online galleries. CCX files use the same underlying data structure as CMX but apply compression to reduce storage requirements — an important consideration during the 1990s when clip art libraries containing thousands of images shipped on capacity-limited media. Corel distributed vast collections of CCX clipart with CorelDRAW suites, and the format became synonymous with the extensive ready-made graphic libraries that distinguished Corel's product offerings. The artwork stored in CCX files ranges from simple geometric shapes to detailed illustrations, covering categories like business, nature, people, symbols, borders, and decorative elements. One advantage is compact storage — compression allows large clipart libraries to occupy significantly less disk space than equivalent uncompressed vector files. The ready-to-use nature of CCX content is another strength, providing designers with drag-and-drop artwork that scales cleanly to any size without quality loss, inheriting the resolution independence of the underlying vector data. While the format saw its peak usage during the CorelDRAW 5 through 12 era, CCX files remain openable in current versions of CorelDRAW and can be converted to modern formats.
Developer: Corel Corporation
Initial release: 1994
RB is the native ebook format of the Rocket eBook, one of the first commercially available dedicated e-reading devices, developed by NuvoMedia and released in October 1998. Founded by Martin Eberhard and Marc Tarpenning — who later co-founded Tesla Motors — NuvoMedia designed the Rocket eBook as a handheld device with a reflective LCD screen, capable of storing approximately ten books in its internal memory. The RB format packages HTML-based content along with embedded images, metadata, and a table of contents into a single binary container optimized for the device's limited hardware. Content was purchased and downloaded through NuvoMedia's RocketLibrarian desktop software. A notable advantage of the format was its early support for bookmarking, annotation, dictionary lookups, and adjustable font sizing — features now standard on modern e-readers but revolutionary in the late 1990s. The Rocket eBook demonstrated viable commercial demand for dedicated reading devices, paving the way for subsequent platforms from Sony, Amazon, and others. NuvoMedia was acquired by Gemstar-TV Guide International in 2000, which discontinued the device line in 2003. While RB files are largely a historical curiosity today, they can be converted to modern formats using ebook management tools, and the format remains significant as a pioneering chapter in the evolution of digital reading.
Developer: NuvoMedia
Initial release: 1998

Frequently Asked Questions

Why convert CCX to RB?

CCX is Corel-exclusive. RB is the RocketBook format for the RocketEdition eReader and compatible reading apps.

What reads RB files?

RocketBook-compatible readers and certain eBook management applications support the RB format.

Is RB a common eBook format?

RB is niche — it is specific to the RocketBook/RocketEdition platform. EPUB or MOBI are more universal.

Is conversion fast?

Yes — cloud processing delivers RB output in just a few seconds.

Is it free?

Free for basic use without registration. Premium tiers add batch and volume features.