{"id":"image-prs-btif","mimeType":"image/prs.btif","name":"Bank Telecommunications Image Format","shortName":"BTIF","category":"Legacy \u0026 Archival","extensions":[".btif",".btf"],"description":"The image/prs.btif MIME type represents the BTIF (Bank Telecommunications Image Format) file, originally developed by NationsBank (now Bank of America) in the late 1990s. It was designed to store and transmit scanned check image data alongside transaction metadata. The 'prs' prefix indicates it is officially registered in the IANA Personal or Vanity tree.","seo":{"title":"image/prs.btif MIME Type | Complete Developer Reference","description":"Complete reference for the image/prs.btif MIME type: history, software support, HTTP headers, developer snippets, and technical specifications for BTIF check images.","faqs":[{"question":"What is a BTIF file?","answer":"A BTIF (Bank Telecommunications Image Format) file is a legacy format used by financial institutions, primarily NationsBank (now Bank of America), to store scanned images of checks along with associated metadata (like clearance dates and account details)."},{"question":"What does the 'prs' stand for in image/prs.btif?","answer":"In IANA MIME type specifications, 'prs' stands for 'Personal or Vanity tree'. It is used for formats that are not standardized by a recognized standards body, but rather registered by individuals or specific companies for their own software ecosystems."},{"question":"Are BTIF files supported in modern web browsers?","answer":"No. Originally, viewing these files required a proprietary NationsBank Check Viewing plugin on Windows. Modern web browsers do not natively support the BTIF image format."}]},"index":{"compression":["Lossy (JPEG-based)","Lossless (TIFF-based)"],"browserSupport":{"score":1,"label":"None"},"commonUses":["Bank Check Archiving (Legacy)","Financial Transaction Records"]},"technical":{"magicBytes":{"hex":"Unknown (Proprietary container)","ascii":"Unknown"},"container":"Proprietary Check Image Container","compressionAlgorithm":["JPEG","TIFF-variant"],"colorDepth":["1-bit (B\u0026W)","8-bit (Grayscale)"],"transparency":false,"animation":false,"metadata":{"exif":false,"xmp":false,"iccProfile":false},"alphaChannel":false,"progressiveLoading":false,"hdrSupport":false},"history":{"developer":"NationsBank (Bank of America) / Ben Simon","released":"1998","specification":"Proprietary (Registered with IANA in 1998)"},"browserSupport":{"chrome":false,"chromeVersion":"None","firefox":false,"firefoxVersion":"None","safari":false,"safariVersion":"None","edge":false,"edgeVersion":"None","internetExplorer":false},"softwareSupport":[{"name":"NationsBank Check Viewer (Legacy)","logo":""},{"name":"ImageC (Bio-Formats)","logo":""}],"conversion":{"convertTo":["tiff","jpeg","png"],"convertFrom":[]},"developer":{"httpHeaders":[{"header":"Content-Type","value":"image/prs.btif"}],"htmlAccept":"image/prs.btif, .btif","fileDetection":["Rely primarily on the .btif or .btf file extension, as the internal magic bytes are not part of standard open-source magic databases"]},"prosCons":{"pros":["Allowed early digital archiving and web-based transmission of cleared bank checks","Encapsulated both image data and ASCII transaction metadata in a single file"],"cons":["Completely proprietary and obsolete format","Lacks native support in modern operating systems and image viewers","Requires legacy plugins or specialized bio-format readers (like ImageC) to decode"]},"specifications":{"url":"https://www.iana.org/assignments/media-types/image/prs.btif","rfc":"","mimeAliases":[]},"developerSnippets":{"python":"import magic\nprint(magic.from_file('check.btif', mime=True)) # Will likely default to 'application/octet-stream' due to lack of magic byte rules","nodejs":"const FileType = require('file-type');\nconst type = await FileType.fromFile('check.btif');\nconsole.log(type?.mime); // Standard parsers will not recognize BTIF files","go":"import \"net/http\"\n// The standard net/http library cannot detect BTIF files. You must rely on the file extension mapping.","php":"$mime = mime_content_type('check.btif');\necho $mime; // Standard server environments will map this to application/octet-stream"},"relatedFormats":["tiff","jpeg"]}