- Extension
- .heifs
- .pgm
- Format
- Binary
- Binary
- Category
- Raster Image
- Raster Image
- Developer
- Apple
- Jef Poskanzer
- Description
- Based on HEVC (High-Efficiency Video Coding), the HEIF format is an image file container with one or multiple images and is the default image format for Apple Live Photos. It replaced the JPEG format as it's smaller in size and has lossless compression ensuring high-quality photos.
- A PGM file is a grayscale image file saved in the portable gray map (PGM) format and encoded with one or two bytes (8 or 16 bits) per pixel. It contains header information and a grid of numbers that represent different shades of gray from black (0) to white (up to 65,536). PGM files are typically stored in ASCII text format, but also have a binary representation.
- MIME Type
- image/heif-sequence
- image/x-portable-graymap
