Why physical size and pixels are different
A physical size such as 50 × 70 mm tells you how large the printed photograph should be. Pixels tell you how much image data is available. The two are connected through print resolution, but one cannot be substituted for the other.
The tool therefore asks for a physical size and generates a 300-DPI output target.
1. Upload the photo
Choose the original photo you want to print. Start with the highest-resolution version you have because a small source cannot gain real detail simply by being enlarged.
2. Choose a preset or enter a custom size
Select one of the available sizes or choose Custom. For a custom job, choose mm, cm or inches and enter the exact width and height you need.
Open the Exact Size Photo Print Maker.
Open the tool3. Check the resolution message
The tool compares the source image with the pixel dimensions needed for the 300-DPI output. If the source is smaller than the target, it warns you that the print may look soft. That is a source-quality warning, not a reason to keep increasing the size.
4. Download and print without scaling
Once the preview is ready, download the output. When you print it, choose Actual Size / 100% instead of a setting that scales the image to fit the paper.
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