Image properties

See img and imggroup for more information about image elements.

Image quality

Deliver images in high quality, 300 DPI for raster graphics (i.e. low compression) JPG format.

Deliver image content maintaining a level of 100% integrity to the source material in terms of:

1. Colour images – images are required to be reproduced with no observable degradation in colour rendering.
2. Greyscale images – images are required to be reproduced without introducing visible compression artefacts, e.g. banding.
3. Text rich images – images in the work containing a lot of text, e.g. flow charts, are required to be reproduced without introducing any degradation in legibility in comparison with the original.

Image size

Image size must correspond with the size of the image in the source material, with exception for the following:

1. An increase in the size of an image is required to achieve the legibility of text rich images, see “Image quality” above.
2. Maximum image size is set to 800 pixels on the longest side of the image for images with landscape orientation.
3. Maximum image size is set to 800 pixels on the longest side of the image for images spread over more than one page.

Image format

Format images as [production-ID]-[pagenum]-[number of image on that specific page]".jpg. Use three digits for pagenum. For example: 320066_p009-1.jpg. Over a 1000 images, use four digits for pagenum. For example: 320066_p0009-1.jpg.

Format cover as "cover.jpg".

Image positioning

Images covering two or more pages

If an image covers two or more pages, do not split the image. Instead, process as a single image. Place the image on the page containing the initial instance of the image.