Jpegtran

jpegtran is a small library that allows you to transcode JPEG files. Currently supported scale factors are M/N with all M from 1 to 16, where N is the source DCT size, which is 8 for baseline JPEG. If the /N part is omitted, then M specifies the DCT scaled size to be applied on the given input.... Platforms: Windows

The library im4java provides a pure-java interface to ImageMagick, GraphicsMagick and other popular commandline tools like jpegtran, ufraw, dcraw, exiftool. The im4java-engine permits the addition of new tools in a very short time (less than an hour) Platforms: Windows, Mac, Linux

This is a toolkit for ImageAPI. It requires imageapi_gd or imageapi_imagemagick or any ImageAPI toolkit to work.ImageAPI Optimize allows you to use your preferred toolkit and optimize (losslessly) the image when it is saved. Practice for web performance suggests that images should be optimized... Platforms: PHP

Jdatestamp - Date Stamper for digital Photos - a free command line utility to losslessly imprint the EXIF date/time of a picture taken in a digital camera onto its JPEG image. It uses the EXIF header information to get the date/time and jpegtran with droppatch for lossless crop and drop of... Platforms: Windows, *nix

libjpeg is a library for handling the JPEG (JFIF) image format. Included are the programs cjpeg and djpeg for converting to and from this format, jpegtran to perform some lossless transformations on JPEG imagess, and rdjpgcom and wrjpgcom to manipulate JFIF comments.. Platforms: *nix

ExifTool GUI is a (free) Graphical User Interface for an already existing EXIF editor called ExifTool, developed by Phil Harvey, a full-featured - command-line - utility. The only downside for many potential users is the fact, that ExifTool is a "Command-Line" utility. That means, there's no... Platforms: Windows

phpGraphy is a free PHP photo gallery script released under GPL license. Since its beginning, it has been written with simplicity and efficiency in mind following the KISS philosophy. It should fit many needs, thanks to its easy installation process and minimal requirements, it can be setup in... Platforms: Windows, Mac, *nix, PHP, BSD Solaris