Libraries tagged by LZW PHP

Compression library for Lempel–Ziv–Welch (LZW) for PHP

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Image containers, metadata editing, and codecs for the PRADO PHP framework: read-write JPEG, TIFF, PNG, WebP/RIFF, GIF87a/89a, AVI, ISO BMFF (HEIF/AVIF/MP4/QuickTime), and JPEG XL; EXIF through Exif 3.1 with makernotes, XMP (ISO 16684-1), IPTC (IIM), Photoshop 8BIM, JFIF/JFXX, JUMBF, PrintIM, and Exif WAVE audio; read-write ICC profiles with a pure-PHP matrix/TRC color transform; dual GD/ImageMagick raster conversion; and the LZW/GIF-LZW/PackBits/CCITT-fax/horizontal-predictor codecs.

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Image containers, metadata editing, and codecs for PHP: read-write JPEG, TIFF, PNG, WebP/RIFF, GIF87a/89a, AVI, ISO BMFF (HEIF/AVIF/MP4/QuickTime), and JPEG XL; EXIF through Exif 3.1 with makernotes, XMP (ISO 16684-1), IPTC (IIM), Photoshop 8BIM, JFIF/JFXX, JUMBF, PrintIM, and Exif WAVE audio; read-write ICC profiles with a pure-PHP matrix/TRC color transform; dual GD/ImageMagick raster conversion; and the LZW/GIF-LZW/PackBits/CCITT-fax/horizontal-predictor codecs.

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Simple javascript to perform LZW compression on longer structured or repetitive UTF8 data (like stringified JSON) to some universally web safe form. Simple PHP class for server side data processing.

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