GD Graphics Library
graphics library
The GD Graphics Library is a graphics software library for dynamically manipulating images. It can create AVIFs, GIFs, JPEGs, PNGs, WebPs and WBMPs. The images can be composed of lines, arcs, text (using program-selected fonts), other images, and multiple colors, supporting truecolor images, alpha channels, resampling, and many other features.
History
The software was developed in 1994 by Thomas Boutell and others.
GD originally stood for "GIF Draw". However, since the revoking of the Unisys license, it has informally stood for "Graphics Draw".
Support for drawing GIFs was dropped in 1999 when Unisys revoked the royalty-free license granted to non-commercial software projects for the LZW compression method used by GIFs. When the Unisys patent expired worldwide on July 7, 2004, GIF support was subsequently re-enabled.
Version 2.0 added support for truecolor images, alpha channels, resampling (for smooth resizing of truecolor images), and many other features.
Features
The "Fly" command line interpreter allows for image creation ("on the fly") using GD. GD scripts can thus be written in potentially any language and run using this tool.
Begin with the source’s own compact description: “GD Graphics Library” is graphics library. The dossier treats that line as a proposition to test through Graphics, Library and graphics, not as a finished interpretation.
Why this record matters
The phrase “graphics library” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Jan 16, 2026. The linked authority identifier is Q1485048. 2 of 3 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 1994, 1999 and 2004.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “GD Graphics Library”, its source revision and the description used here.
- Expand the search: follow GD Graphics Library primary sources, GD Graphics Library archive and Graphics research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “GD Graphics Library”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “GD Graphics Library” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.