Print-size portrait preparation involves more than setting a pixel width and height. Photo authorities and application portals can specify head size, background, expression, lighting, crop, file size and recency requirements. These rules differ by country and application.
Pixel dimensions and print size
A 35×45 mm portrait at 300 pixels per inch is approximately 413×531 pixels. This is a pixel-canvas calculation, not an approval standard. Always read the current official instructions for your application.
Check the subject and background
Keep the face evenly lit, avoid strong shadows and ensure the subject is positioned according to the rules for the destination. Do not rely on a generic crop tool to judge official compliance.
Keep the original
Save a copy of the unedited photo and inspect the exported file at full size before uploading or printing.
Last reviewed: 14 November 2026. Always check the current requirements of the destination website or service before publishing or submitting an image.