CCX to G4 Converter

Free CCX to G4 — Group 4 fax format conversion

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Advanced Fax Encoding

CCX to G4 produces Group 4 compressed output — the more efficient successor to Group 3 fax encoding.

No Complexity

Upload your CCX, choose G4, download. Three steps — the converter handles all the technical details.

Secure Process

Your CCX file is deleted after conversion. G4 output is purged from servers within 24 hours.

How to convert CCX to G4

1

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

2

Choose g4 or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your g4 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
G4 is a monochrome image format based on the ITU-T Group 4 facsimile coding standard (Recommendation T.6), ratified by the CCITT in 1984 as an improvement over Group 3 for use on error-free digital networks like ISDN rather than analog telephone lines. G4 files contain 1-bit image data compressed using exclusively two-dimensional Modified Modified READ (MMR) coding, where each scanline is encoded as a set of differences (changing elements) relative to the line above it. By eliminating the one-dimensional coding fallback and the end-of-line synchronization markers required by Group 3, G4 achieves 20-50% better compression ratios on typical document pages while producing a simpler, more regular bitstream. The format is most commonly encountered as a compression method within TIFF files (TIFF compression tag 4), where it became the standard archival format for scanned documents in enterprise document management, government records, and legal imaging systems. G4 compression is specified at 200, 300, or 400 dpi depending on the scanning application, with 300 dpi being the most common for archival-quality document imaging. One advantage is exceptional compression efficiency for document content: G4's two-dimensional prediction exploits the strong vertical correlation in text and line art pages, typically compressing a 300 dpi letter-size page to 30-50 KB — roughly half the size of equivalent Group 3 encoding. The format's entrenchment in document management infrastructure is another strength — G4 TIFF is the mandated format for many government digital records systems, court filing systems, and corporate archives, supported by every enterprise imaging platform.
Developer: ITU-T (CCITT)
Initial release: 1984

Frequently Asked Questions

Why convert CCX to G4?

CCX is tied to CorelDRAW. G4 (Group 4) is a high-efficiency fax compression used in document management systems.

What reads G4 files?

Document management systems, TIFF viewers with G4 support, and professional fax software handle G4 encoded data.

Is G4 better than G3?

G4 achieves better compression than G3 for the same image quality — it is the newer fax encoding standard.

How quick is the conversion?

Seconds. G4 files are compact and cloud processing makes the conversion nearly instantaneous.

Can I use this on mobile?

Yes — the converter works in any mobile browser on iOS or Android without needing an app.