Questions tagged [image-resize]

When the user uploads an image, WP automatically resizes it to all the sizes that have been registered. Existing images are not resized when the theme is switched. There are filters available to influence the resizing process.

17
votes
10answers
18k views

How to generate thumbnails when needed only?

I have 1000 images. How can i make wordpress to generate thumb only when needed. For example home slider will only use 10 images i dont want the other 1000 images have that thumbnail generated as its ...
17
votes
3answers
368 views

Handle issues with change of image scaling (rounding) in 4.1 (WP Ticket #18532)

I am currently in the course of migrating site content from an old pre 4.1 site to a new setup and hitting an issue with the rounding error issue of #18532 and the corresponding fix. To summarize ...
16
votes
6answers
15k views

How to disable WordPress from creating thumbnails?

I've been looking around the net for a long time on how to disable WordPress from creating multiple thumbnails. I've seen in most tutorials to set all the images to 0 in the media section. I have ...
14
votes
2answers
481 views

Image quality based on image size

Is it possible to set the image quality based on the image size? I'd like to have better image quality for larger images (80) - and worse for small thumbnails (30). I was expecting a parameter at ...
12
votes
3answers
6k views

Automatically replace original uploaded image with large image size

As our users regularly upload ~6MB images to use on the website (and aren't too familiar with how to resize them first), WordPress stores the originals as well as resizing them to several different ...
11
votes
2answers
17k views

How to scale up featured post thumbnail?

The situation is this: I'm using Video Thumbnails plugin to automatically get and set youtube/vimeo thumbnails as post featured image. The problem is that default youtube/vimeo thumbnail sizes are ...
10
votes
3answers
10k views

How To Delete Desired Image Sizes From wp-content/uploads?

My default media setting in WordPress blog is 150x150, 300x300, 1024x1024 respectively for thumbnail, medium, large images. Now I am designing a theme that need different size thumbnail images to show ...
8
votes
3answers
563 views

How to insert pictures without hard coded dimensions?

How can I insert pictures into a post without any hard coded dimensions (e.g. <img src="" alt="" /> instead of <img src="" alt="" width="" height="" />)? I don't want my users to switch to ...
8
votes
5answers
3k views

Generate Thumbnails only for Featured Images

I would like to know if there is a simple way (custom code or plugin) to create thumbnail sizes only for images that I intend to use as featured images (index.php, archive.php, etc.) , but not for the ...
8
votes
2answers
5k views

Custom image size / thumbnail - Crop to aspect ratio even when source image is smaller than set dimensions

Normally when you set a custom image size using hard crop - e.g. add_image_size( 'custom-size', 400, 400, true ); - you get the following results: #1 Uploaded image: 600x500 > Thumbnail: 400x400. #2 ...
7
votes
1answer
1k views

Which filters or actions to use after a media upload and delete?

When a media (image) is uploaded and the subsequent images are created (all the different sizes), I would like to perform a few actions. It is simple and I basically need only the new attachment ID, ...
6
votes
4answers
30k views

Why WordPress automatic cropping all my images?

Am new to WordPress, when I upload any image, WordPress automatic crops into its own sizes which I have not mention in the media section (Settings » Media). Settings which I saved in media is: ...
6
votes
1answer
447 views

Maintaining image color and quality when uploading using custom sizes

One continual problem with clients is that they tend to upload 5MB images directly from their devices onto their websites. Best way around that, since we can't really enforce proper image sizing and ...
5
votes
3answers
54k views

PNG with transparent background turns black when uploaded and resized

Steps to reproduce: Create a PNG-8 with a transparent background. Upload to WordPress 3.3.1. View original PNG in any browser, Chrome, Firefox, IE, etc. Notice that it retains transparency as it ...
5
votes
3answers
2k views

How to avoid Wordpress stripping EXIF metadata when resizing images?

Metadata is information about an image, and can be included in JPEG image files. EXIF metadata is information about the image recorded directly from the camera – for example, the exposure time and ...
4
votes
7answers
7k views

How to remove 20 GB of resized images?

I want to delete all the resized images while leaving the original image. I have more than 20 GB of unused data taking up room on the server. For example: first-image-name.jpg first-image-name-72x72....
4
votes
1answer
3k views

image_resize in wp3.5 change to wp_get_image_editor and wont work

After 3.5 removed support image_resize and now says to use wp_get_image_editor as described here: https://codex.wordpress.org/Function_Reference/wp_get_image_editor Before (when it was image_resize),...
4
votes
3answers
6k views

Settings in 'Media > Settings' is ignored when inserting images

When I upload an image, it is automatically resized as I would expect, however the sizes for inserting the image seem to ignore the settings I've placed in Settings/Media. In my media settings I have:...
4
votes
1answer
3k views

Using Advanced Custom Fields with Wordpress and Lightbox

I am using the ACF Plugin. I want to have a field where I can upload an image, and the result will display the full image in the Lightbox and then then full image will be resized into a thumbnail from ...
4
votes
1answer
168 views

How to change the naming of the resized image files

Now with custom image sizes Wordpress is almost as powerful as timThumb / phpThumb. There is one problem however. The way Wordpress handles the resized images are chaotic and doesn't survive theme ...
3
votes
3answers
4k views

Impose a Maximum Limit on Image height and width upload size

Clients have been uploading huuuge images, then complaining that the server is running out of memory. Ofcourse one could bump the amount of memory, but this just introduces an arms race. What hooks ...
3
votes
2answers
838 views

Image dimensions same as image size

So if I set the large image size in the media library to say 600x600 pixels, and then upload an image which is the same dimensions it won't get set as the 'large' image. There is talk on this ...
3
votes
2answers
1k views

Disable resizing of gif when uploaded

Animated gifs are getting more popular on the web (again) and currently there is no good tool for resizing animated gifs. So I want to disable resizing/generation of image sizes for the gif mimetype ...
3
votes
2answers
592 views

There's a way to scale media (images) at 50%?

I wonder if there is a way to scale down uploaded media exactly to 50%. From what I see, with add_image_size you can only specify a width and a height in pixel. The idea is to upload high resolution ...
3
votes
3answers
5k views

Setting different width and height for gravatar

I've been trying to set a different width and height using the get_avatar function. I need to set the author's avatar in single.php to 60x40 size. So let's say the gravatar looks like this: when set ...
3
votes
1answer
133 views

Register an additional image size for only some images in my media library

There is a type of post on my blog which requires one extremely large image (such that it can be zoomed). I don't want to register a new image size, because I only need a certain small subset of ...
3
votes
1answer
809 views

Crop image to horizontal or vertical by code based on image size

my client asked me to create gallery(WP gallery) based on this site. the problem here is that i need to crop images based on image size before inserting the image in the Media library. now i using ...
3
votes
1answer
485 views

Cropping, Re-sizing and Saving images from one folder to another folder in wordpress

I'm adding an upgrade for the WordPress plugin which I have developed ages ago. This plugin is just a product catalog, so just show products and their images. Products can have more than one images. ...
2
votes
1answer
1k views

Rename image during upload using date and time stamp?

I am trying to rename images during upload to avoid problems with image file names containig special characters and file names with non-latin characters. I found this function to rename images in ...
2
votes
1answer
430 views

resize only height using wp_get_image_editor

I want to resize an image keeping its original width unchanged. I only want to resize the height to 300px. I am trying following, but it changes the width automatically. How can I keep it unchanged? $...
2
votes
2answers
719 views

Resizing Images to lower Disk Space Using Plugins

I'm trying to take existing images and shrink the file size down by resizing to photos to a smaller resolution. I've tried a few methods so far: Simply editing the photo in photoshop and reuploaded, ...
2
votes
1answer
5k views

resize images not crop

Looking for a hack to resize images on upload (all forms of image uploads on wordpress) to exact dimensions, but not to crop. I will open a bounty for this question since I believe It can be of help ...
2
votes
2answers
148 views

How to handle core code throwing notice on valid input?

I have combination of valid input with native WP function throwing PHP notice. In this specific case it is image without extension with image_resize(). This is usually suppressed by WP, but it still ...
2
votes
1answer
2k views

Regenerate thumbnails after upload

I have this nice little code coming straight from the Wordpress codex if($_FILES['user_picture']['size'] != 0): if ( ! function_exists( 'wp_handle_upload' ) ) require_once( ABSPATH . 'wp-...
2
votes
1answer
521 views

Custom image size not regenerating when image editted

I have a custom image size at 200x150 that works fine in a plugin I'm working on. Uploading new files is no problem but when I edit an image, the default image sizes get regenerated but my custom ...
2
votes
2answers
29 views

Image file sizes increasing on upload

I'm having a little odd problem where by when I upload an image I have optimized down to say 200kb, when its displayed on the site WordPress has actually increased the file size to 800kb. My ...
2
votes
2answers
816 views

Use image url with add_image_size

I am looking for a way to use an image url with the WordPress function add_image_size, I have already setup an image size called 'custom-thumb' For example, instead of... the_post_thumbnail( 'custom-...
2
votes
1answer
4k views

Using wp_get_image_editor in a standalone script

With WP 3.5, they updated the image resizing scripts with wp_get_image_editor. Currently, in this standalone script that is accessed with Ajax, I have included wp-load.php so I can access all of the ...
2
votes
1answer
2k views

Can a thumbnail of an animated gif be animated?

I have an animated gif I want to show in two places, having two different sizes. I am creating two sizes in my functions.php, using add_image_size( 'small-feature', 500, 300 ); add_image_size( '...
2
votes
1answer
1k views

Size article thumbnails and retrieve them directly from database

I've integrated the Wordpress database directly with my .NET application. What I want is to set the featured image of a post. This featured image must be maximum 800pixels wide, and automatically ...
2
votes
1answer
3k views

How can i use wp_get_image_editor for image resizing

I search a lot that how can i re-size images that upload with meta field but i get nothing instead of wp_get_image_editor. I read from codex about it but nothing helpful so I search about this ...
2
votes
0answers
2k views

How to resize image on client-side before upload?

I've been using Plupload to resize images on the client side before uploading them to the server. I've implemented a front-end form which lets the user select a file from their computer and submit it. ...
2
votes
1answer
2k views

Allow user to manually set crop area of default/custom image sizes on upload [closed]

I'm looking for a plugin that allows the user to define where the image will be cropped for a given thumbnail size. For example, the user uploads an image, a screen comes up with the image and a ...
1
vote
2answers
5k views

“There has been an error cropping your image” when cropping image

I am setting the header image in WordPress and when I click on the crop button, it shows me the following error: There has been an error cropping your image.
1
vote
1answer
873 views

Generate fixed image sizes for different pages, eliminate sizes during upload

I've built a few sites in Wordpress and in general I'm quite pleased with all the possibilities it has developed lately. There's one main thing that is utterly confusing for end users; the sizes they ...
1
vote
1answer
2k views

How to get custom image sizes into media uploader dropdown?

I searched net to solve the problem with images size uploaded from media. But not even one worked to me. When I try to insert images from the media into post it does not show my custom image size 608 ...
1
vote
2answers
1k views

Advanced Custom Fields

I am using the Advanced custom fields plugin to add a upload image option to a page, but I am wondering if there is a way so that, when I output it to a theme with <img src="<?php the_field('...
1
vote
2answers
382 views

Force WordPress, themes & plugins into using defined sizes

Many users do not compress or resize their images before uploading them into a post, so source images can often be a lot larger than the settings in /wp-admin/options-media.php. Many theme and plugin ...
1
vote
1answer
2k views

resize from small images to large

I want to create large images though my original image is smaller. I have original images 1024x768 in my media library, and i want to resize these images to 1920x1080px in my WordPress posts. I ...
1
vote
2answers
1k views

Plupload resize for worpdress

So, for the Plupload, I know there is a documentation to how to resize the image on the client side before uploading : http://www.plupload.com/docs/Image-Resizing-on-Client-Side However, I am not ...