Home – New Forums Tech talk How do I fix my grainy thumbnail images on YouTube – using Canva for design? Reply To: How do I fix my grainy thumbnail images on YouTube – using Canva for design?

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winchweb
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The official word is to put up as large a thumbnail as possible, and at least 1280×720 pixels. Fonts and font-size don’t have any bearing. There’s a specific Canva layout for Youtube thumbnails (which is that recommended size), did you try that one? Make sure you download as JPG, and upload “as is” (ie. don’t resize or change the image quality after you’ve downloaded it).