Author Archives: admin
Image file formats
(This entry was taken from Wikipedia and edited.) Image file formats are a standardised means of organising and storing images. This entry is about digital image formats used to store photographic and other images. There are two types of files – lossless and lossy • Lossless & Lossless compression – are files that do not loose information [...]
Paper Size vs File Size
Size (mm) RGB CMYK A6 105×150.5mm 6.31mb 8.42mb A5 150.5x210mm 12.7mb 16.9mb A4 210x297mm 24.9mb 33.2mb A3 297x420mm 49.8mb 66.4mb A2 420x594mm 99.6mb 132.8mb A1 594x841mm 199.4mb 265.9mb A0 841x1189mm 399.1mb 532.2mb
Why is Screen Colour Calibrating Important ?
The idea is that an image colour balanced on a calibrated screen (and embedded with a ICC profile), will provide the same result on other calibrated screens and/or devices (eg. printers etc).This makes life easy, as the output result is known. But use a screen that isn’t calibrated for colour balancing images and the result [...]
Resolution – DPI
Resolution relates to the number of pixels that go to make up the file and is measured in dots per inch (dpi). The higher the dpi the higher the image quality. To make it even more confusing, different resolutions are required for different purposes. Web 72 dpi RGB Brochure 300dpi CMYK Newspaper advertising 240dpi CMYK [...]
Requesting images – Things you should know!
While everyone has a camera and a computer, not everyone knows what is required to get images into print. Below are the main components that you need to know. 1. Resolution relates to the number of pixels that go to make up the image file and is measured in dots per inch (dpi). The higher the dpi, the [...]
Send it as a Hi Res Jpeg
“Send it as a Hi Res Jpeg” …..a common request, sounds good but doesn’t mean much. ‘Hi Res’ is commonly translated into meaning a file with a resolution of at least 300dpi. ‘Jpeg’ is one of the various file formats used for images. The statement mentions nothing about the physical dimensions of the image, nor [...]
‘Image size’ , File Size and ‘Resolution’
‘Image size’ , File Size and ‘Resolution’ are three terms that are often and easily confused. Image size is measured in kilobytes (kb) or megabytes (mb) and is relevant to the open uncompressed image. • Compressed file size – using compression algorithms various file formats reduce file size of the image file. Some keep the quality [...]