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@ -165,7 +165,8 @@ This method returns pagesize if bbox is corrupted
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function Document:getUsedBBoxDimensions(pageno, zoom, rotation)
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local bbox = self:getPageBBox(pageno)
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local ubbox_dimen = nil
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if bbox.x0 < 0 or bbox.y0 < 0 or bbox.x1 < 0 or bbox.y1 < 0 then
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if (bbox.x0 < 0) or (bbox.y0 < 0) or (bbox.x1 < 0) or (bbox.y1 < 0)
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or (bbox.x0 == bbox.x1) or (bbox.y0 == bbox.y1) then
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-- if document's bbox info is corrupted, we use the page size
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ubbox_dimen = self:getPageDimensions(pageno, zoom, rotation)
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else
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