AZImage help - Detailed help - Format form - New image size
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In AZImage a size of 0 means to resize the image in such a way that its aspect ratio (width/height ratio) remains constant. A positive number is the absolute value in pixels or the percentage reported to the corresponding dimension of the source images.
Some examples are listed on the form, to give you the information at the time when you need it. You can select the resize algorithm by clicking on "Advanced..."
When you are ready, just press "Next" to go to the next step.
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