Format | THM | PPM |
Company | Pixmap file format | |
Description | The THM file format is essentially identical to the JPEG File Format (JFIF). | Netpbm format is a family including the portable pixmap file format (PPM), the portable graymap file format (PGM) and the portable bitmap file format (PBM). These are ASCII files that provide very basic functionality and serve as a least-common-denominator for converting pixmap, graymap, or bitmap files between different platforms. Several applications refer to them collectively as the PNM format (portable anymap). |
Benefits | Used to store thumbnails for faster preview | Popular |
Drawbacks | Uncompressed large files |
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