How to Tell If an Art Print Was Printed in High Resolution

Softness and pixelation are the two failures that ruin a print, and both are visible before you pay. Here is how to check a listing, a preview image and the paper itself.

Auvrique Editorial · Fine Art Editions

The short answer

A print is high resolution when its source file carries roughly 300 dpi at the printed size, which means a 24 by 36 inch print needs a file around 7200 by 10800 pixels. Check the listing for a stated dpi at full size, zoom the preview to 100 percent and look for crisp edges, clean color transitions and no visible pixel squares or blur around brushwork.

Start With the Numbers in the Listing

Resolution is arithmetic, not taste. A file printed at 300 dpi looks sharp at reading distance. At 150 dpi it still passes on a wall, though edges soften up close. Below 100 dpi the failure is obvious, with stair-stepped diagonals and mushy detail. Sellers who print well state the dpi at the actual print size, not a dpi figure for a small file scaled up. If a listing quotes 300 dpi without saying at what size, that number means little.

Do the conversion yourself. Multiply the print dimensions in inches by 300 and compare that to the pixel dimensions of the source file, which many sellers will provide if asked. A 24 by 36 inch print needs roughly 7200 by 10800 pixels. Anything materially under that will not hold at full size. This is the fastest way to check print resolution quality before spending money, and it takes about two minutes. For context on where reproduction quality tends to vary, see our guide to buying high-quality prints online where to buy a high-quality print.

Read the Preview Image Like a Proof

The preview is your only evidence, so interrogate it. Zoom to 100 percent if the site allows it. Look at the edges where dark shapes meet light ones, since that is where pixelation shows first. Kulbin's work, with its flat planes of color and hard graphic contours, is actually a fair test case. Blurred or doubled contour lines in the preview usually mean a low-grade source file, and the print will be worse than the screen.

Signs of high-res art prints in a preview include clean transitions inside color fields, visible paper or canvas texture in close-up shots, and detail photos taken at an angle rather than straight on. Be skeptical of previews that look suspiciously crisp at small sizes but offer no zoom. Some sellers upscale small scans with software, which produces a smooth but plasticky surface that loses brush texture entirely. The same scrutiny applies if you are weighing a framed poster the framed poster edition or a canvas.

What to check before buying

Zoom the preview to 100 percent and inspect contour edges for pixel steps.
Ask the seller for the source file's pixel dimensions and compare them to print size at 300 dpi.
Look for close-up photos showing real paper or canvas texture rather than a flat render.
Treat a dpi claim with no stated print size as marketing, not information.

Judge Sharpness on the Wall, Not the Screen

Viewing distance changes the standard. A print seen from two meters away can hide a file that fails at arm's length, and that is often acceptable. Decide where the piece will hang and judge accordingly. Large formats are the real risk, because a modest source file stretched across 40 inches will fall apart. If you want a big piece, favor sellers who license or rescan at high resolution rather than reusing small web images.

One honest caveat. The original scan sets the ceiling, and no printing method can add detail that was never captured. Older or obscure works are sometimes digitized from photographs of photographs, and the softness is baked in. A reputable seller will say so. If a listing for a canvas edition the Night framed poster shows soft brushwork in every close-up, assume the print will look the same, whatever the claimed dpi. For format trade-offs, see our comparison of canvas and framed prints canvas versus framed poster.

A dpi figure without a print size attached is not a specification. It is a decoration.

Print size	Width in pixels	Height in pixels
12 x 16 in	3600	4800
18 x 24 in	5400	7200
24 x 36 in	7200	10800

Minimum source file pixels at 300 dpi

Key takeaways

A sharp print needs a source file at roughly 300 dpi at the full printed size.
Zoom the preview to 100 percent and check contour edges for pixelation or blur.
Ask for the file's pixel dimensions and compare them to the print size before buying.
Viewing distance matters, so judge resolution at the distance the piece will actually be seen.

Related questions

Is 300 dpi always necessary for a wall print?

No. At typical viewing distances of a meter or more, 150 to 200 dpi can look perfectly sharp, especially for graphic work with flat color fields. The 300 dpi standard matters most for close viewing and for fine detail such as brush texture. Judge the print at the distance you will actually see it.

Can an upscaled image still make a good print?

Upscaling with modern software can produce a print that looks acceptable, but it cannot recover detail the original scan never captured. Edges become smooth rather than sharp, and brush texture tends to disappear. The result often reads as slightly artificial, particularly in areas of fine line or layered color.

What if the seller publishes no file information at all?

Ask directly for the source file's pixel dimensions and the dpi at your chosen print size. A seller confident in its files will answer with numbers. Vague replies about professional quality are a reasonable signal to look elsewhere, since resolution is the easiest specification in the business to state honestly.

From the Auvrique collection

Made to order · Every size