Image Dimensions For Print Size
Compute both whole raster dimensions by rounding print inches times target pixels-per-inch upward, retaining pixel excess. Not printer halftone DPI, font point height or a print-quality guarantee.
Description
A planned print size and PPI specify an exact raster extent that may be fractional.
A planned print size and PPI specify an exact raster extent that may be fractional.1
Rounding each dimension upward ensures the integer raster reaches the requested extent.
When to use Image Dimensions For Print Size
Use this tool when you need to reproduce the stated calculation from measured records or independently selected model inputs. Establish the font version, feature, layout, physical or CSS units, and matched reference basis needed for this calculation.
How to use Image Dimensions For Print Size and understand its results
- Establish the font version, feature, layout, physical or CSS units, and matched reference basis needed for this calculation.
- Enter desiredPrintWidthInches, desiredPrintHeightInches, callerPixelsPerPrintInch, following the field table and rules below, then run the tool.
- Read requiredIntegerPixelDimensions, integerRasterExcessPixels. Use the output meanings below to interpret units, signs, flags, and any nested result fields.
- Correct reported input issues and run again. For a successful result, check the stated evidence coverage and assumptions before using it in your review.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| desiredPrintWidthInches | Desired print width inches | number | Required |
| desiredPrintHeightInches | Desired print height inches | number | Required |
| callerPixelsPerPrintInch | Caller pixels per print inch | number | Required |
Enter positive width and height in inches and positive PPI. Multiply both extents by PPI and round upward to safe integers. Return [width,height] and the rounding excess in pixels.
pixels_axis=ceil(inches_axis×PPI); excess=pixels_axis−inches_axis×PPI Symbols follow the input and output meanings and the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| requiredIntegerPixelDimensions | Required integer pixel dimensions | list of number |
| integerRasterExcessPixels | Integer raster excess pixels | list of number |
{
"input": {
"desiredPrintWidthInches": 4,
"desiredPrintHeightInches": 3,
"callerPixelsPerPrintInch": 300
},
"output": {
"requiredIntegerPixelDimensions": [
1200,
900
],
"integerRasterExcessPixels": [
0,
0
]
}
}Limitations and assumptions
The calculation uses declared units and font or layout assumptions. It does not shape glyphs, lay out actual pages, or certify accessibility or print quality.
Missing required fields, unknown fields, wrong types, and violated calculation rules are input issues. Numeric values must be finite; nonfinite results are rejected.
Alternative or Complementary methods
For a related review, use Print Size From Image Resolution: A raster’s print dimensions follow from its pixel dimensions and a chosen pixels-per-inch density. Both axes matter when planning a print. For a complementary step, use Screen PPI From Diagonal Resolution: Physical screen PPI measures raster pixels per physical inch. It is distinct from a CSS pixel scale or the ratio between device and CSS pixels.
References
-
Image Dimensions For Print Size — tool.io
Similar or alternative tools
- Print Size From Image Resolution
A raster’s print dimensions follow from its pixel dimensions and a chosen pixels-per-inch density. Both axes matter when planning a print.
- Screen PPI From Diagonal Resolution
Physical screen PPI measures raster pixels per physical inch. It is distinct from a CSS pixel scale or the ratio between device and CSS pixels.