A few simple functions that make it really easy to manipulate images. They are well commented, short and easily changeable to fit your needs.

• Free

This class can be used to generate QR Code images using the Google Chart API. It sends a HTTP request to the Google Chart API Web server to request the generation of a PNG image that represents the QR code graphic for a given information snippet. The class can request the generation of QR codes for several content types.

• Free

Easily create a square thumbnail of any image. It supports anti-aliased rounded corners, watermarking, custom borders and batch creation. It requires only GD2 and one file include to run. Supports JPG, GIF and PNG.

• $5

This script adds a transparent watermark to an image dynamically. It requires the GD 2.0.1 library.

• Free

This code sample combines resizing and cropping to fit an image to given dimensions.

• Free

Use GD to watermark images on the fly by overlaying the original image with another image, such as a company logo.

A simple way to give an image a digital "watermark" to prevent unauthorized use.

This function takes care of all your JPG resizing. You supply the function with 5 arguments, and it outputs a resized JPG image per your specifications.

• $39.95

This class can perform several types of image manipulation operations for the GIF, JPEG and PNG formats. It can rescale images to fit in a given width/height, optionally maintaining the original aspect ratio; flip images horizontally or vertically; rotate images by a given angle; and crop images. It does all the error checking.

• Free

A set of classes to handle ANSI images. It can convert an ANSI to PNG and generate the file in two sizes.

• Free

This class can generate sprite images and the CSS code to use these images in webpages. It takes a list of images and generates a single image out of them. It can then generate CSS definitions to use these images in your website. Requires GD2.

• Free

This script is useful to dynamically reduce the size of images on websites.

• Free

This function will resize an image to the specified width and height without distorting it and in most cases without adding black regions to the image (by cropping the image to the desired size). It is very useful for creating picture thumbnails of a given size, regardless of the image's original dimensions.

• Free

This class will create image thumbnails with a drop-shadow effect. Control the background color to better blend the effect into your site. You can perform absolute or relative resizing.

• Free

A code sample to watermark uploaded images on the fly. It imprints the specified text over the image using GD-library functions and true type fonts. You can modify the script parameters to change the font, color, opacity, alignment and rotation. You can use any standard true-type font of your choice.

A simple, yet powerful tool to create web slideshows from dynamic images and data.

• Free

This script resizes an image using the GD library and saves the resulting image as a JPG.

• Free

This class will thumbnail images and manipulate them with bevel, greyscale, ellipse, merge, frame, dropshadow, motion blur and more.

• Free

Use the GD library to apply round corners of any size and color to a GIF, JPEG or PNG image.

• Free