What is DPI and how do I measure it?

Question

I have to send a picture to a magazine, and it's not to exceed 300 dpi. Can you please tell me how many pixels make 300 dpi. Also, a picture of how many kilobytes would be 300 dpi?

Answer 1

Dpi Measurement

Answer 2

dpi stands for dots per an inch. It is a measurement. Most photo software should have options for verifying the dpi along with the size and other attributes of your photo. When you edit your photo and choose the resize option you can set it for the dpi you want. You are better off though resizing a photo smaller then checking the dpi to insure it is within the parameters you want. The reason to do it this way is to maintain the integrety of the dimensions of the photo. I also make sure my i keep the original image in its larger original format and make my edited photo a copy with a new name. This way I always have my mater image to go back to when i need to resize the photo again or for print quality.

Answer 3

It is a setting when you save/resize a .JPG. No it is not the same as your compression ratio. That should be set to none if you want it to be printed/ printable.

Below 100 dpi makes a picture go 'crumbly' when printed.
Above 300 makes it needlessly large.

Answer 4

I think you are talking about ppi, not dpi. dip is dots of ink per inch that your printer produces and varies by manufacturer and cost of the printer. The higher the dots, the better the print. ppi is pixels per inch. you photograph in pixels and print in dots. 300 ppi is a high resulation required by most editors for photographic reproduction. They can change the ppi to fit their needs.

I save and edit my photographs in 300 ppi before I send them to the magazine. Kilobytes or megabytes are file sizes of your photograph. The larger the picture size and resolution, the greater the file size. I do not know of any formula of kilobytes to dpi or ppi.

Answer 5

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