I am trying to create a poster for myself and order through Redbubble (rural place, no good print shops nearby). I want to make sure the file resolution will allow for clear and sharp text. I don't want to end up with blurry text like the last poster I ordered which was 150dpi.

The size of poster I want to print on: 16inchx24inch The resolution of my image: 400DPI The dimensions of my image: 5551 × 7840

The smallest text size is 8pt on the design. Redbubble doesn't allow for uploading vector files, only PNG. With an SVG file I could guarantee sharp text, but alas...

Bonus question: I am adding an image to the design which is : 1920x1080 72DPI - Will it be too blurry or can I pull of a reasonable sharpness?


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    Images don't have a DPI until you print them - this is a very common misconception. Do you really mean feet? 16 by 24 feet seems a bit big for a poster & a bit of an odd format for a billboard…. though no-one is ever going to print 8pt on a billboard. Assuming you mean inches, then 24" at 7840px is going to resolve to 327 dpi but your 5551 dimension is different, so that's not going to fit any 2x3 format without adjustment/cropping. Additionally, 1920x1080 printed at 72dpi will be bigger than your print size (one way). I think you need to take your artwork to the printer & discuss it with them – Tetsujin Dec 29 '20 at 16:31
  • Sorry, meant inches... What exactly do you mean with the 1920x1080 72dpi being bigger than the print size? Also like I mentioned in the post - a printer is not possible, only online. – Ivan Kukovec Dec 29 '20 at 16:44
  • 1920@72dpi is 26 inches. Don't consider any image to have a dpi until you print it. You will just get more confused. – Tetsujin Dec 29 '20 at 16:53
  • So I don't have any way to know if the image I linked to will have sharp text/ overall look sharp on a 16 by 24 poster? – Ivan Kukovec Dec 29 '20 at 16:54
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    If "crisp text" is your concern.. any provider requiring a PNG file, is the wrong provider. A PDF, with live, vector, text is optimum. – Scott Dec 29 '20 at 18:38

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