Monday, February 16, 2015

resolution - Using a 72 ppi image in a 300 ppi print ad


I'm designing an ad for print in Illustrator. It is set to 300 ppi. I was given a bunch of logos to put in it. One of the logos I have been given is a 72 ppi PNG file. It is much larger than I need it to be in the ad, so I will be scaling it down significantly.


Question: If it is 72 ppi will it print okay in the 300 ppi ad, as it is being scaled down quite a bit?


thanks so much!



Answer



@Webster's answer is pretty spot on. A reduction of more than 400% may make the file okay to use.


In Illustrator, Check the Resolution reading in the Docuemnt Info Panel once you scale down. (Window > Document Info, then use the panel menu to choose Linked Images with the image selected)


enter image description here



That will give you an Effective PPI reading based upon scaling. Which may be fine.


A few tips for finding logo when you have been given garbage.



  • Check the company's web site. They may have larger raster versions of their logo in use there.

  • Check the Company's web site for PDF downloads. You can often cannibalize a PDF and extract a vector version of their logo from a PDF download they offer.

  • Check logo sites such as BrandsOfTheWorld.com -- provided the company is large enough, their logo (in vector form) may be available there.

  • Last resort - kick back to the company asking for a better quality version. If they don't have a vector format often asking for the "largest file they have" can work. Often these types of things are sent by sales or managerial staff that have no clue about technical requirements. So, they send you the file they use when posting to Facebook or something. Kicking it back to them may force them to actually ask the design staff for an image.


In general a 72ppi image in a commercially printed piece is going to look horrible if the print production people even allow it to go through.


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