what size of file is needed for different end uses and which file format should you use?

What size of file is needed for different end uses and which file format should you use?







Through having pixel dimensions of the image you can see what maximum prints can achieve from the digital images.

The image calculator works through entering dimensions width and height and it calculates the sixe and pintsize.



Resolution – images have no size other than the pixels that are in them. There are different kinds of resolutions spectacle resolutions and colon resolutions spectacle being all about frequency and colour all concerns amount of colour the higher the pixels are in the images the better the quality of the digital image will be.





Optical resolution – inside a scanner is ccd which is a chip reading samples from work being scanned to which provides the resolution in one pixel however many scanners ask for dpi even though spi is better with resolution, furthermore some scanners ask for twice the size of png file meaning portable network graphics is a file format also this is a smaller size file much smaller than a tiff or gif also png files open standard lossless compression also offering 24 bit colour. It is just simply an alternative file format to use.







There are different file types /formats after choosing 3 areas where photographic file may be needed then looked at what file type would be best for each.

Magazine commercial printing – this can depend on the people you are taking the photographs for and always important to find these details out before printing usually the most common file type and size is tiff as this produces a high quality prints , furthermore in the commercial world quark files are very popular as there is many workflows based around this.

File formats for desktop printing – most printers are designed to work with rgb data, most printers will work with many file formats even jpeg compressed files even thought this will always work better with maximum amount of image data like tiff and psd .













My advice for anyone asking on this topic would be that you should always consider what kind of file you are working with or producing because different file sizes can work better in different cases.