If you server does not have the right image libraries installed WordPress can’t create actual thumbnails, but can only resize them in CSS. I suspect that that is the problem.
Create a file on your server and put <?php phpinfo(); ?>
in it. Then load that file. You will get a table of server configuration information. Look for the presence of PHP’s image libraries. I am pretty sure WordPress uses Imagemagick
if available, then GD
, then nothing. I may be wrong about that though. I am not terribly familiar with the media subsystems.
You can also check the wp-content/uploads
folder to see if images are being created in multiple sizes.
It is also possible that a plugin or theme has disabled the image generation.
Related Posts:
- Change the default-view of Media Library in 3.5?
- How do I select an image from Media Library in my plugin?
- Media Library plugins for better file management? [closed]
- How to add subfolders in media library for better organisation?
- List of available events for wp.media
- print_media_templates not applied in media manager plugin
- WordPress 3.5 attachment_fields_to_edit and media_send_to_editor
- How to upload an image in the plugin’s options page
- image_size_names_choose filter doesn’t show
- How do I ‘rebuild’ the WordPress Media library after transfer to new host?
- Proper way to hook wp_get_attachment_url or any other way to change that url in media library
- How can I list URLs of all audio files within my media gallery?
- Filter pictures in the media library [closed]
- WP 3.5 media uploader API set selected item
- Is there a way to delete images from the Media Library programatically?
- Add file name column to media library
- Remove the columns in media library
- Is there a way to specify the tab to display when the Media Uploader is displayed?
- How to add ‘Attachment Display Settings’ in custom Media Library?
- Using WordPress as a document library
- Image width tag is less than the image pixel width – why?
- Register an additional image size for only some images in my media library
- How to enlarge thickbox media library iframe?
- Change default screen option value for media items per page (in media library)
- Making the Add Media Link URL into a checkbox
- Add tab on new media library
- Show ids of displayed media library items
- Share media among different domains
- Where is the source of the media items filter
- how to download all media files into my computer
- Add image to media library from URL in uploads directory
- How does the media library determine if a PDF file has preview images?
- resize from small images to large
- Function to get image from media library
- Adding Alt Attributes Automatically when Uploading Images to Media Library
- How can I make the Uploaded field editable for Media Library?
- Media gallery thumbnails 1px
- Display only my own files/images in media library
- How to have changes made in media library to be reflected on posts/pages
- Why do I sometimes get an attachment id string instead of a url from an image’s guid field in the post table?
- How to change compression of WordPress uploads including original image
- Slow/Not Working Media Library Search
- wordpress not generate thumnails for mp4 videos
- Media Library not showing images properly
- Clean up wp-content/upload/ folder
- Media Library Grid View Custom Filter
- Not able to extend wp.media.view.AttachmentsBrowser
- Custom Media Modal and uploading
- How do I migrate blog post images from one domain to a new one?
- Manipulate an image before saving or after to the media libary
- Media Library No Longer Displays Images
- Media Library SSL
- Get the largest image based on a thumbnail in a URL
- Image file names with a space in them
- WordPress does not detect all images in uploads folder?
- the_post_thumbnail(“size”) returns same image for all sizes except thumbnail
- Media library and posts list problems with WordPress on IIS
- Can I set multiple feature images to multiple posts from the media library?
- “add from media library” tab is super slow [closed]
- Reorder attachements in the media library
- Media library disallows spammy filenames?
- Recalibrate _wp_attachment_metadata Image Dimensions
- Conditional tag to determine if the user is viewing the Add Media (after clicking Add media button)
- Adding Alt Tag and Dimensions columns to Media Library
- How can I delete duplicate `*-1.jpg` images?
- Images are displaying as blank images
- Extract url of every image in library?
- Is it possible to share WordPress media files among different domains?
- How to manage a music library in wordpress
- How to edit a deleted image gallery?
- What would be the URL to display the WordPress image editor with an image from the media library?
- WordPress ACF delete image from media library
- Prevent other editors from viewing images of other editors in Add Media Popup
- Media attachment date and post date
- User media folder for each users on registration
- Larger preview thumbnails in Media Library
- WordPress Media Import, images not in Media Library
- How can I no-index specific PDF files in my Avada WordPress media library so that they don’t appear in search results?
- Filter media library by custom postmeta
- How do you find a file in the media library using the file URL?
- Want to sell images online on wordpress but slow image loading issues
- images inside wp-content/ uploads/ are not showing up in my media library and uploaded using FTP protocol
- add_image_size() in custom theme is not generating and saving any thumbnail
- Update WP Media Library image unattended
- Uploads folder only showing files up to the letter “P”
- Moving wp from a server to another, with different administrator
- When I’m in post editor and click on ‘Add media’, why won’t it load the media library with this code?
- How to access media library?
- how to setup user access media library?
- Get filenames of available image sizes
- Change the default-view of Media Library in 3.5?
- bulk deleting empty items in the media library
- Media Manager 3.5 custom options
- Why is my upload / Select media library button empty?
- All the Images in Media Library is showing broken links
- 2 or more WordPress instances (Live vs Staging Test site) –> access 1 uploads.domain.com — images holder – see images in Media Library
- media library contains corrupt doubles
- How can I change the page title of PDFs opened from a WordPress link which use the browser’s viewer?
- Files showing in link but cannot be found in the upload directory
- Block non logged in users from accessing the media library