Tools Included in the ViPER

Here you can find a full list of the bundled tools and some references to online resources.

DROID icon DROID (Digital Record Object Identification)

A file format identification tool developed and maintained by The National Archives of the UK. DROID performs automated batch identification of file format. DROID uses internal signatures to identify and report the specific format versions of digital files. These signatures are stored in an XML signature file, generated from information recorded in the PRONOM technical registry.


A tool developed by Harvard University Library and the Open Preservation Foundation. JHOVE provides functions to perform format-specific identification, validation, and characterization of digital objects.

Tika icon Apache Tika

A characterisation and text extraction tool developed and maintained by the Apache Software Foundation. detects and extracts metadata and text from over a thousand different file types (such as PPT, XLS, and PDF). All of these file types can be parsed through a single interface, making Tika useful for search engine indexing, content analysis, translation, and much more.

veraPDF icon veraPDF

A validation and characterisation tool for the PDF/A format, developed by The PDF Association and The Open Preservation Foundation.

HandBrake icon HandBrake

A tool for converting video from nearly any format to a selection of modern, widely supported codecs.

Mediainfo icon Mediainfo

A convenient unified display of the most relevant technical and tag data for video and audio files.

MediaConch icon MediaConch

An extensible, open source software project consisting of an implementation checker, policy checker, reporter, and fixer that targets preservation-level audiovisual files.

Inkscape icon Inkscape

Open source image manipulation software bundled with Debian.

GIMP icon GIMP (GNU Image Manipulation Program)

Open source image manipulation software bundled with Debian.