ABBYY products are often licensed with a system that allows to process a certain number of pages within a period of time. A 'page' in this terminology isa a DIN A4 pages (210 x 297 mm).
Following rules apply:
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If the page that was processed is smaller than A4, then one A4 page is counted
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If the page that was processed is bigger than A4 (for example A3) the page counter gets reduced as follows:
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A3 = 2 x A4
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A2 = 2 x A3 = 4 x A4 - so minimum 4 pages will be counted
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In reality, the situation is more complicated, because the physical paper size is a standard size, however the size of the digital image depends on the scan/image resolution.
This means that at the end, the important value is the the number of pixels of an image.
Page Count and Paper Size
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For pages larger than A4 the counter of recognized pages increases by the number
(area of the page)/(area of A4) )
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To calculate the width and height of a page we use the following formula:
int imageWidth = image→GetWidth() / max( 1, image→GetResolution() )
int imageHeight = image→GetHeight() / max( 1, image→GetResolution() ); [image is an Image Object].-
This object represents a single “image plane” (black-and-white, color or preview) of an image in internal format.
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imageWidth and imageHeight are values in inches.
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If you need the size in centimeters you just need to know 1 inch = 2,54 cm.
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Format & Pixel
| Paper size | in inch | in mm | in twips (1/1440 of inch) |
|---|---|---|---|
| A3 | 11,69 x 16,54 | 297 x 420 | 16838 x 23811 |
| A4 | 8,27 x 11,69 | 210 x 297 | 11909 x 16834 |
| A5 | 5,83 x 8,27 | 148 x 210 | 8391 x 11909 |
| Legal | 8,5 x 14 | 216 x 356 | 12240 x 20160 |
| Letter | 8,5 x 11 | 216 x 279 | 12240 x 15840 |
| Executive | 7,25 x 10,5 | 184 x 266 | 10440 x 15120 |
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