Extract text from Tape format requirement documents (TFD)
To convert TFD documents to another format, you need ERDAS Imagine or other GIS software.
To convert other file formats to the "Geospatial Intelligence Image File" file type, you need software like ERDAS Imagine or a similar tool.
The .TFD file extension primarily denotes a Tape Format Requirements Document, a highly specialized geospatial intelligence file. Developed by the National Geospatial-Intelligence Agency (NGA), it is used to store heavily compressed geolocational imaging data. These files are typically handled by advanced military and defense GIS platforms, including ERDAS Imagine and Textron RemoteView.
The primary disadvantage of the .TFD format is its extreme lack of accessibility. Because it relies on proprietary, high-ratio compression algorithms designed for secure government systems, it is impossible to open these files in standard consumer image viewers or web browsers. Without an expensive, enterprise-grade GIS software license, the data remains completely locked and useless to the average user.
When possible, the most pragmatic solution is to export or convert the .TFD file into more standardized geospatial or image formats. Converting to a NITF (National Imagery Transmission Format) retains the intelligence metadata but removes the extreme compression barrier. For general viewing, exporting to TIFF (specifically GeoTIFF) preserves the spatial reference data, while converting to PDF is ideal for sharing static map layouts - though you will lose the raw geospatial data and coordinate accuracy in the process.
Due to its closed, proprietary nature, converting a .TFD file is notoriously difficult. Standard online converters completely fail to process the specialized NGA compression. Often, only the original defense GIS software can properly read or export the embedded imagery. Our analysis engine will inspect the file's internal structure and extract any readable metadata, embedded text, or underlying uncompressed elements, helping you determine exactly what kind of data you are dealing with.
Convert.Guru analyzes your TFD file, detects the exact format, and lets you read the text inside.
Users also converted TXT files.
If you want to convert TFD file to TXT, RTF, DOC, DOCX, ODT, PAGES, TEX, LATEX, MD, MARKDOWN, LOG or NFO, you can use ERDAS Imagine or similar software from the "Geospatial Imaging Data Storage" category. In the File menu, look for Save As… or Export….
To convert PDF, DOC, ASC, TODO, NFO, MEMO, README, DOCX, JPG, TXT, NOTE or RTF files to TFD, try ERDAS Imagine or another comparable tool in the "Geospatial Imaging Data Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our TFD converter.