There are two type of JPEG picture file. Regular JPEG, or baseline JPEG. Progressive JPEG, or Interlace JPEG. It is very common, same quality picture, progressive jpeg is smaller than regular jpeg. And also progressive jpeg can show the content when the picture is download. This kind of show is to shown the whole picture
What is Timthumb? It is a small php script for cropping, zooming and resizing web images (jpg, png, gif). Here is the official place to donwload the script. https://code.google.com/p/timthumb/ Even the developers said it is not supported any more, there are still a lot of sites or plugins of wordpress and joomla. Here is
I have a PHP 5.5.13 which is compiled from source. With GD support. I saw some image thumb is not shown in the webpage of Joomla. The error log has following errors: Call to undefined function: imagecreatefromjpeg() When I check the phpinfo, I saw GIF enabled, PNG enabled, WBMP enabled, XBM enabled, but jpeg is
