Rsyncrypto allows you to encrypt a file or a directory structure such that they can later be synchronized to another machine using rsync. This means that local changes to the plain text file result in local changes to the cipher text file. rsyncrypto compresses the plain text file prior to encrypting it with gzip using the "rsyncable" patch, which is available from the rsync sources.
DROID (Digital Record Object Identification) is a software tool to perform automated batch identification of file formats. It is designed to meet the fundamental requirement of any digital repository to be able to identify the precise format of all stored digital objects, and to link that identification to a central registry of technical information about that format and its dependencies. It uses internal and external signatures to identify and report the specific file format versions of digital files. These signatures are stored in an XML signature file, generated from information recorded in the PRONOM technical registry. New and updated signatures are regularly added to PRONOM, and DROID can be configured to automatically download updated signature files from the PRONOM Web site via Web services.
Haystack is a powerful tool designed to enable each and every individual manage all of her information in the way that makes the most sense. By removing the arbitrary barriers created by applications that only handle certain information "types", and recording only a fixed set of relationships defined by the developer, users can define whichever arrangements of, connections between, and views of information they find most effective. Such personalization of information management will dramatically improve your ability to find what you need when you need it.
SnapMatcher is an application intended for photographers, artists, or image packrats who have very large collections of digital images, some of which may be duplicates or near duplicates. By identifying images across multiple formats with the ability to filter out minor edits such as changes to contrast, brightness, color balance, resizing, or even the addition of text or borders, SnapMatcher can be a valuable tool in organizing/culling unwieldy collections.
pHoToMoLo is a toolset for managing JPEG images in JFIF or Exif format. Photomolo generates a static HTML 4.01- and CSS 1-based multi-resolution image gallery for a directory tree containing images. Exifiron losslessly compresses and corrects the orientation of Exif JPEG images. Jpegnail removes or embeds thumbnails. Jpegcom lets you edit embedded image comments using any text editor and image viewer. A shell script frontend for Exifiron is included for copying images from removable storage, such as USB or Compact Flash.