📚 Create Content > Blocks > Image

Sizes and ratio p/device

We need related images to be provided in Wide Web format. (1920 x 1080). We can downsize from there.

Image TypeMobileTablet PortraitTablet landscapeWide Web
Carousel – header360px x 510px
Ratio : 2/3 (30px bleed/cut-off vertical)
770px x 760
Ratio : 2/2 (10px bleed/cut-off horizontal)
1024px x 760
Ratio : 4/3 (8px bleed/cut-off horizontal)
1440px x 775
Ratio : 16/9 (25px bleed/cut-off vertical)
Thumbnails / featured images (Articles)330px x 240px
Ratio : 4/3 (7.5px bleed/cut-off)
270px x 194px
Ratio : 4/3 (8px bleed/cut-off vertical)
230px x 220px
Ratio : 5/4 (12px bleed/cut-off vertical)
350px x 230px
Ratio : 3/2 (3px bleed/cut-off vertical)
Image Carousel360px x 240px
Ratio : 8/6 (7.5px bleed/cut-off)
770px x 497px
Ratio : 6/4 (16px bleed/cut-off vertical)
1024px x 655px
Ratio : 3/2 (27px bleed/cut-off vertical)
1106px x 714px
Ratio : 16/10 (25px bleed/cut-off vertical)

The P4 Media Library

All P4 sites come with a WordPress Media Library, from which (when logged in) you can manage Images and Videos in both List and Grid views.

Go To Admin > Media and enjoy the magic!

Insert images from the Greenpeace Media Library

Our in-house made P4 plugin allows P4 connection with the Greenpeace Media Library. All sites are already configured and working with standard API credentials. More info in Set up the P4 Settings.

The Greenpeace Media Library grants image access to Greenpeace staff based on the following guidelines:
  1. All content is protected by copyright and must be credited
  2. The user agrees that the content of a photograph will NOT be changed, cropped or manipulated in any way
  3. The user may receive links to 2500 pixel still images and broadcast resolution video media releases for a 14 day period from initial release (30 days for video). As an authorized representative, users are allowed to grant usage directly related to Greenpeace campaigns on the following basis: no resale, no archives, editorial use only, not for marketing or advertising campaigns, credit line compulsory
  4. The user agrees that photos greater than 800 pixels will not be posted on any external website without the Greenpeace Media Library permission
  5. The user agrees to read and respect any additional restrictions displayed with an image (e.g. Credits obligatory, not to be inserted in publications etc.)

To add Greenpeace Media Library images to a P4 post or page, select the “Image block” in edit mode.

Select “Media Library” > “Upload Files” > “Upload from GPI Media Library” > type your query > Select the image > “Insert into WP Media” > Then you will find it in your P4 Media Library.

See gif below

Importing images from the GPI Media Library

Once inserted into “WP media”, that image exists in your normal P4 WordPress media library. If you want to use it again, you don’t need to search for it again in the GP Media Library. Size-wise, imported images won’t get larger than 1MB.

Original images uploaded from the Greenpeace Media library are not re-touched or modified. Multiple thumbnails are created for various usages though. In most places in the html code you can see a tag srcset that has multiple versions of the same image, so in any device an image is used in the correct size.

Image storage and urls

KEY INFO >>  The Maximum upload file size is 10 MB.

The P4 setups use a feature called “Google Cloud Storage“. This means that P4 images are stored in Google Cloud, using a WordPress 3rd party plugin called wp-stateless. 

P4  image automatic compression  (Option #6 of this github tests) works this way:

This is an image automatically adjusted to 1024 px width, weighting 140 KB – still good quality but way lighter to load!

Image URL-wise, each P4 image will have 2 types of URLs:

We are working to remove the attachment page URL, which seems to be a WordPress standard feature, but de facto creates pages each time we upload an image. Annoying.

“Lightbox” effect (when images are clickeding on images)

When clicked, all P4 images are displayed by filling the screen and dimming out the rest of the post/ page.

Image optimization

KEY INFO >>  The Maximum upload file size is 10 MB.

Whether a JPEG (or JPG), PNG or GIF, large images take longer to load and can slow down your site. By large, we refer to file size rather than to the dimensions of an image, i.e. the value in KB, MB, GB etc.

Optimizing images means resizing the image file size without impacting the image quality.

You can download a handy Photoshop action (.atn) created by our GP New Zealand colleagues, learn how to open ATN files or keep reading for tips.

To optimize your images:

1) Save the right dimensions

2) Save Images for the Web 

3) Compress images for the Web with online tools 

P4 site favicon

Planet 4 uses WordPress default settings for the favicon. And most sites use the rounded Greenpeace “G”, with green background (see below). See >> Set up the P4 Key Content for instructions on how to set it up in your P4 site.


Planet 4 posts and pages allow emojis. You can copy and paste them from any Emoji websites, like this one.


Design Specifications

Check the Design systems for the Image block design specifications

Templates & Links