File Format Supports List

11 categories, 80 formats, covering mainstream and industry file types

Format Overview

Covering mainstream file formats to meet diverse compression needs

SmartSlim compression engine supports 11 categories totaling 80 file formats, covering images, PDF, video, audio, Office documents, OFD, text, e-books and email, medical imaging, geospatial and scientific data. Document formats generally offer lossless channels, and industry formats (GeoTIFF, DICOM, HDF5, etc.) preserve metadata semantics while compressing.

Format Categories

Specific Formats

Format Matrix

Listing all supported formats by category

Image (9 types)

jpg jpeg png webp bmp tiff tif gif exr

Built-in specialized encoders, no external dependency. TIFF/GeoTIFF uses the native lossless channel: pixel-by-pixel lossless re-encoding, with georeferencing tags, ColorMap and other business tags fully preserved.

PDF (1 types)

pdf

Video (8 types)

mp4 mkv avi mov wmv flv webm m4v

Supports mainstream video encoding formats, native performance processing.

Audio (7 types)

mp3 wav ogg opus m4a flac aac

Word (5 types)

docx doc docm odt rtf

Intelligently identifies and compresses embedded media resources.

Excel (6 types)

xlsx xls xlsm xlsb ods csv

Intelligently compresses embedded charts and image resources.

PPT (4 types)

pptx ppt ppsx odp

Focus on compressing slides' embedded images and media.

Fixed-layout (3 types)

ofd xps oxps

OFD is a fixed-layout document standard, XPS/OXPS for Microsoft fixed-layout format.

Text (26 types)

txt xml json log html htm md markdown tex rst adoc asciidoc yaml yml toml ini conf srt vtt geojson kml gml gpx xbrl ofx svg

Lossless channel: tiered zstd/brotli encoding, byte-for-byte restoration after decompression. GIS interchange texts (GeoJSON/KML/GML/GPX) get structure-safe minification; SVG gets value-exact numeric minification at the extreme level (mathematically equivalent rendering).

E-book & Email (2 types)

epub eml

EPUB: quality-floored image re-encoding + font subsetting + orphan resource pruning, DRM-protected files kept as-is; EML: base64 attachment decoding recovery, signature bytes untouched, byte-for-byte restorable.

Industry & Scientific Data (9 types)

dcm nii dxf las laz h5 nc kmz shp

DICOM medical imaging lossless re-sealing (pixels untouched); NIfTI neuroimaging gzip re-compression; DXF CAD drawings; LAS/LAZ point cloud lossless transcoding; HDF5/NetCDF chunk-level re-compression (container directly readable); KMZ geopackages; Shapefile bundle packaging (shp/shx/dbf/prj together).

Note

CSV also appears in Excel and text Category in, because it has both table and plain text properties.
TIF / TIFF are two extensions of the same format; H5 covers .hdf5 / .he5, and NC covers .ncdf.
Industry formats all ship with a gain guard: when re-compression yields no benefit, the output is byte-for-byte identical to the input (never grows). Format count does not duplicate synonymous extensions.