: I need tips on saving HUGE JPEG Files im creating canvas artwork, at 30 inches x 40 inches. The files are huge and they need to be under 20mb for me to upload. I heard .tif files could

@Moriarity648

If the jpegs are too big already, then there is absolutely zero chance that a TIFF will be smaller.

150dpi is perfectly adequate for a large format print, even 120dpi would do especially if it is being printed on a textured canvas. 300 dpi is fine as well, but a bit excessive unless you think viewers will be examining the print with a magnifying glass.

30" x 40" at 150dpi is 4500px x 6000px

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