compress image size in php

Php: how to compress the image size first, let's talk about our website. after the website is written in the background, the editors upload images as needed. many images are saved in the png format by default by QQ. The code for uploading images is

PHP image watermark Add, compress, cut the package class, PHP operation of the image file is mainly to use the GD library extension. When we frequently use PHP to manipulate images, we naturally encapsulate many functions, otherwise we will write

This article describes how to use the imagick module in php to scale, crop, and compress images. For more information about how to use the Imagick module in PHP to scale, crop, and compress images, including GIF images Scale and crop The code is

This article describes how to use the imagick module in php to scale, crop, and compress images. For more information about how to use the Imagick module in PHP to scale, crop, and compress images, including GIF images Scale and crop The code is

This article mainly introduces the PHP implementation of compressed image size and into a JPG format, involving PHP for image reading, calculation, conversion, output and other related operations skills, the need for friends can refer to the

PHP uses the Imagick module to scale, crop, compress pictures including GIF images Zoom crop Copy CodeThe code is as follows:/*** Picture Clipping* Cropping rules:* 1. Height is empty or zero by width scaling height adaptive* 2. Width is empty or

This article PHP picture operation package class inside four kinds of methods, text watermark (Imagettftext ()), Picture Watermark (Imagecopymerge ()), picture compression, picture clipping (imagecopyresampled ()), the rest of the usual GD function

The mobile end uses localResizeIMG4 to compress the image, Mobile h5 development cannot avoid uploading images. Generally, we use the built-in html control to input or useUpload API. However, the upload API is not available anywhere. Using the input

Php uploads images and adds watermarks (image watermarks and text watermarks ). Php uploads an image watermark (image watermark, text watermark). This is a complete watermark that is automatically added to the image when the user uploads the image,

PHP image processing function class (watermark image, thumbnail) [about proportional compression and cropping compression] The following is a simple image processing class, including watermarks and thumbnails.However, there are two ways to