BigTIFFmuoto

BigTIFF is a file format specification that extends the original TIFF (Tagged Image File Format) to support image files larger than 4 gigabytes. The standard TIFF format uses a 32-bit offset field to point to image data, which limits the maximum file size. BigTIFF increases this offset to 64 bits, allowing for significantly larger files, theoretically up to 16 exabytes.

This enhancement is crucial for applications that generate or process extremely large images, such as high-resolution scientific imaging, astronomical data, and professional photography. Without BigTIFF, these applications would be unable to store or manage their data in the TIFF format.

The BigTIFF specification is implemented by software applications that need to handle these large files. When a TIFF file exceeds the 4GB limit, it is typically saved in the BigTIFF format. Many modern image processing and viewing applications are capable of reading and writing BigTIFF files, though older software may not support it. The core structure of the TIFF format remains the same, with the change primarily affecting the offset mechanism.