Free print size and DPI checker
Find out whether your image is big enough to print at the size you want, free and with nothing uploaded. See the biggest size it can hold, and save it resized.
Stays on this computer · no signup · no watermark
Faster with the free Chrome extension: right-click any picture on a website and send it straight to the print size checker. Add to Chrome · what it does
Extension installed. Right-click any picture on a website and choose Makerfern → Open this picture in… to bring it here.
The question behind every blurry sticker
Nothing about a file tells you it will print well: it is pixels divided by inches, and that only exists once you decide how big the finished thing is. This tool does that arithmetic, shows the verdict at the size you have in mind, and lists the common sizes so you can see where the image stops holding up.
It reads the real pixel dimensions, not a scaled copy, so the numbers are the file's own.
Using Cricut Design Space 10.4? Its September resolution-validation fix can recheck a raster after you enlarge it. The Design Space low-resolution guide shows how to compare pixels with the finished size before reprinting.
Before you print
- Check at the finished size, not the size on screen. A design that looks sharp in a browser tab can be soft at four inches.
- Print at 100%. "Fit to page" and "shrink to fit" rescale the artwork, which changes the resolution and, for print-then-cut, stops the cut lining up.
- For anything that gets cut, a vector has no resolution to run out of. Convert it once and the size question goes away.
Questions
What is dpi, really?
Dots per inch: how many pixels land in each printed inch. It is not stored in your image in any meaningful way — it comes from the size you print at. A 900-pixel-wide image is 300 dpi at three inches and 90 dpi at ten.
Is 300 dpi a rule?
It is a rule of thumb for something held in the hand, and this tool labels it that way. Signs and posters read from a step back are fine much lower. What matters is how close the viewer gets, which is why the table shows several sizes rather than one pass-or-fail answer.
Can I just enlarge the file to reach 300 dpi?
Enlarging stretches the pixels you already have; it never adds detail that was not photographed or drawn. The tool tells you when the size you want would mean enlarging, and by how much. The real fixes are to export the artwork bigger from wherever it came from, or to convert it to a vector, which has no resolution at all.
Does the downloaded PNG remember the size?
Yes. The resolution is written into the file, so print software places it at the right physical size instead of guessing. Print at 100% and switch off "fit to page" or the size changes again.
Next step
Picture too small for the print?
Enlarge it to the size and dpi you chose. The next tool says whether the picture already has enough pixels and, if it does not, enlarges it with a model that guesses the missing detail (it does not restore it), then saves a PNG with the dpi inside.
Upscale for printAfter you save the resized PNG, the buttons under the tool can carry it into the next tool on this device. Or drop the picture in yourself.