{"id":"image-vnd-fujixerox-edmics-rlc","mimeType":"image/vnd.fujixerox.edmics-rlc","name":"Fuji Xerox EDMICS-RLC","shortName":"EDMICS-RLC","category":"Legacy \u0026 Proprietary","extensions":[".rlc",".edm"],"description":"The image/vnd.fujixerox.edmics-rlc MIME type represents a proprietary raster image format developed by Fuji Xerox for its Engineering Data Management Information Control System (EDMICS). While its sister format (EDMICS-MMR) was heavily optimized for bi-level black and white line art using Group 4 fax compression, EDMICS-RLC utilizes Run-Length Coding (RLC). This approach provided computationally cheap, lossless compression for different types of scanned engineering documents, grayscale graphics, or legacy drawing data within corporate Fuji Xerox archiving workflows.","seo":{"title":"image/vnd.fujixerox.edmics-rlc MIME Type | Developer Reference for EDMICS-RLC","description":"Complete reference for the image/vnd.fujixerox.edmics-rlc MIME type: Fuji Xerox EDMICS history, Run-Length Coding (RLC) compression, and legacy document archiving.","faqs":[{"question":"What is the difference between EDMICS-MMR and EDMICS-RLC?","answer":"Both are proprietary formats used in Fuji Xerox EDMICS enterprise systems. EDMICS-MMR uses Modified Modified READ (Group 4 fax) compression, which is highly optimized for high-resolution black-and-white schematics. EDMICS-RLC uses Run-Length Coding (RLC), a simpler form of compression (RLE) typically used for different types of scan data or continuous-tone images where MMR was less effective."},{"question":"What does RLC stand for in this format?","answer":"RLC stands for Run-Length Coding (often synonymous with Run-Length Encoding or RLE). It is a lossless data compression technique where runs of identical data values are stored as a single value and a count, making it very fast to decode on 1990s hardware."},{"question":"Can I open an image/vnd.fujixerox.edmics-rlc file on a modern computer?","answer":"Not natively. Modern web browsers, operating systems, and standard image viewers like Photoshop or ImageMagick cannot parse the proprietary Fuji Xerox container wrapped around the RLC data. Viewing these files requires specialized legacy EDMICS client software or enterprise document migration tools."}]},"index":{"compression":["Run-Length Coding (RLC / RLE)"],"browserSupport":{"score":1,"label":"None"},"commonUses":["Fuji Xerox EDMICS Enterprise Systems","Archival of Scanned Engineering Documents","Legacy Corporate Scanning Pipelines"]},"technical":{"magicBytes":{"hex":"Unknown (Proprietary Container)","ascii":"Unknown"},"container":"Fuji Xerox EDMICS Wrapper","compressionAlgorithm":["Run-Length Coding (RLC)"],"colorDepth":["1-bit (Monochrome)","8-bit (Grayscale)"],"transparency":false,"animation":false,"metadata":{"exif":false,"xmp":false,"iccProfile":false},"alphaChannel":false,"progressiveLoading":false,"hdrSupport":false},"history":{"developer":"Fuji Xerox Co., Ltd.","released":"1990s","specification":"Proprietary (Registered with IANA)"},"browserSupport":{"chrome":false,"chromeVersion":"None","firefox":false,"firefoxVersion":"None","safari":false,"safariVersion":"None","edge":false,"edgeVersion":"None","internetExplorer":false},"softwareSupport":[{"name":"Fuji Xerox EDMICS Client Software (Legacy)","logo":""}],"conversion":{"convertTo":["tiff"],"convertFrom":[]},"developer":{"httpHeaders":[{"header":"Content-Type","value":"image/vnd.fujixerox.edmics-rlc"}],"htmlAccept":"None","fileDetection":["Due to its proprietary enterprise nature, standard magic byte databases (like libmagic) do not contain definitions for the EDMICS wrapper.","Identification relies entirely on the HTTP Content-Type header from legacy Fuji Xerox database exports or string matching the .rlc file extension."]},"prosCons":{"pros":["Simple, computationally inexpensive Run-Length Coding enabled rapid compression and decompression on low-power legacy hardware","Deeply integrated into Fuji Xerox enterprise hardware for seamless, automated scan-to-archive workflows"],"cons":["Completely proprietary and closed-source, making modern archival extraction and migration extremely difficult","No support in modern image processing libraries like ImageMagick, libvips, or standard viewers without bespoke decoding tools","RLC compression is far less efficient than modern algorithms like PNG (Deflate) for complex documents"]},"specifications":{"url":"https://www.iana.org/assignments/media-types/image/vnd.fujixerox.edmics-rlc","rfc":"","mimeAliases":[]},"developerSnippets":{"python":"import magic\n# Libmagic lacks definitions for the proprietary EDMICS wrapper. It will likely identify the file as 'application/octet-stream'.\nprint(magic.from_file('scanned_document.rlc', mime=True))","nodejs":"const mime = require('mime');\n// Many JS MIME libraries map .rlc to image/vnd.fujixerox.edmics-rlc purely based on historical IANA registry associations\nconsole.log(mime.getType('scanned_document.rlc')); // Likely outputs 'image/vnd.fujixerox.edmics-rlc'","go":"import \"net/http\"\n// The standard net/http library cannot detect EDMICS files internally via byte sniffing. You must rely on extension string matching.","php":"$mime = mime_content_type('scanned_document.rlc');\necho $mime; // Standard server environments will map this to application/octet-stream"},"relatedFormats":["tiff","pcx"]}