Looking at it in detail it seems that you can’t alter the image editor just in some details. The only thing you can do is to replace the image editor with a slightly modified copy. I’ll explain shortly how this can be done. But before that a word of warning. The Image Editor is currently … Read more
I have tested this with an image I created myself with Photoshop where I inserted the word “Süss” in every thinkable IPTC field. I uploaded it to my WordPress 4.6 installation, which has no image handling plugins installed. The uploading went smoothly, the right thumbnails were created in the uploads directory and the caption field … Read more
I don’t know if this is the best way to do this, but it works for me. In the functions.php of the theme you are using, put this: function remove_img_src($html) { $html = preg_replace(‘@(width|height)=”([0-9])+” ?@i’, ”, $html); return $html; } add_filter(‘image_send_to_editor’, ‘remove_img_src’, 10, 8); It uses regular expresions to change the output that is inserted … Read more
Just found a new plugin which seems to do exactly what I described above: http://wordpress.org/extend/plugins/additional-image-sizes-zui/ Hope this helps someone!
You can use the wp_generate_attachment_metadata filter: function wpse_183835_to_jpeg( $meta, $post_id ) { $sizes_to_convert = array( ‘thumbnail’, ); $path = dirname( get_attached_file( $post_id ) ); foreach ( $sizes_to_convert as $size ) { if ( ! empty( $meta[‘sizes’][ $size ] ) ) { $data = $meta[‘sizes’][ $size ]; if ( $data[‘mime-type’] === ‘image/png’ && is_file( $file = … Read more
The featured image attachment id is stored in the post_meta table, with the meta_key _thumbnail_id. Use that post id to find the post meta with meta_key _wp_attachment_metadata. The value of that is a serialized array with keys thumb, file, width, height, sizes (an array), and image_meta (an array). The file value is relative to the … Read more
Unfortunately there is no legal way to control it. But there is a dirty way to do it… If you select this route, then you will need to : clone the standard gallery_shortcode function add a default value for $attr[‘link’] option hook your cloned function into post_gallery filter The final result will look like this: … Read more
You can try the following to clear the image attachment’s title when it’s inserted but not updated: /** * Empty the image attachment’s title only when inserted not updated */ add_filter( ‘wp_insert_attachment_data’, function( $data, $postarr ) { if( empty( $postarr[‘ID’] ) && isset( $postarr[‘post_mime_type’] ) && wp_match_mime_types( ‘image’, $postarr[‘post_mime_type’] ) ) $data[‘post_title’] = ”; return … Read more
It sounds like you need to change the URLs for the old images. The easiest & quickest way of doing that is to do a find and replace on the MySQL database. You can use PHPMyAdmin (usually provided by your web host) or other MySQL editing software such as Sequel Pro to make changes to … Read more
Concerning documentation there is this blog post on the Make Blog: Responsive Images in WordPress 4.4 To increase the 1600px limit mentioned in the comments try this: add_filter(‘max_srcset_image_width’, function($max_srcset_image_width, $size_array){ return 2000; }, 10, 2); Finally as already mentioned you should fix your calls to add_image_size add_image_size(‘news-large’, 1024, false); needs to be add_image_size(‘news-large’, 1024, 0, … Read more