The thumbnail-plus package

This package provides every tool you need to easily and safely generate thumbnails for JPG, GIF and PNG images.

By safely, we mean that this package should be able to handle images uploaded to a public web server without any known vulnerabilities:

File sizes are constrained and checked.
Image sizes are constrained and checked before the images are loaded into memory. Uses code from the deprecated imagesize-conduit by Michael Snoyman.
Optionally, the original image is reencoded before being saved.
The images are processed using the GD library, which is heavily battle-tested and audited by many pairs of eyeballs.

Please report any vulnerabilities you may find, we take strive to make this library suitable for processing arbitrary images.

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Properties

Versions	1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5
Dependencies	base (>=4.6 && <5), bytestring (>=0.10), conduit (>=1.0), data-default (>=0.5), directory, either (>=4.1), gd (>=3000.7.3), resourcet (>=0.4), temporary (>=1.2), transformers (>=0.3) [details]
License	MIT
Copyright	(c) 2014 Prowdsponsor
Author	Felipe Lessa, Michael Snoyman
Maintainer	Felipe Lessa <felipe.lessa@gmail.com>
Stability	Unknown
Category	Graphics
Home page	https://github.com/prowdsponsor/thumbnail-plus
Source repository	head: git clone git://github.com/prowdsponsor/thumbnail-plus.git
Uploaded	Thu Apr 10 19:19:43 UTC 2014 by FelipeLessa
Distributions	LTSHaskell:1.0.5, NixOS:1.0.5, Stackage:1.0.5, Tumbleweed:1.0.5
Downloads	1011 total (13 in the last 30 days)
Votes	0 []
Status	Docs not available [build log] All reported builds failed as of 2015-11-25 [all 5 reports]

For package maintainers and hackage trustees

Generate thumbnails easily and safely.