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Astera Technology

Fit a wide creative inside a box without cropping

Use the limiting dimension and record the resulting empty space.

Read proportional containment policy

Synthetic source geometry is 1600×900 pixel units. Target box 600×300 models ideal proportional containment with empty space, but no crop or stretching. Scale is the smaller of 600/1600 and 300/900. Local placement accepts empty side space; use these supplied box dimensions.

Contain scaling worksheet
ConstraintScale/resultMeaning
Width limit0.375Not limiting
Height limit1/3Limiting
Ideal geometry533⅓×300 pixel unitsNo content crop
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Calculate the limiting scale

  1. Calculate both scale limits
  2. Take the smaller scale
  3. Scale both dimensions equally
  4. Record total side space

Do not round output width up beyond the box or claim stretching preserves proportions.

What dimensions and total horizontal space result?

Show the worked answer

Ideal geometric dimensions are 533⅓×300 pixel units, with 66⅔ units of total horizontal empty space,33⅓ each side if centred. A width-first 600×337.5 output would exceed height by 37.5.

Keep the unused space explicit

Filled campaign-operation checks
CaseDecision or resultReason
Scale 1/3FitsHeight exactly 300
Scale 0.375RejectHeight 337.5 exceeds 300
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Preserve the exact geometric ratios. A raster rendition needs a separately supplied rounding/export choice before a concrete pixel-size deliverable can be requested.

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